Active air intake grille with self-locking function and vehicle

Abstract

The application discloses an active air intake grille with a self-locking function and a vehicle with the same, wherein the active air intake grille comprises a frame body, a vane, a first connecting rod and a locking mechanism; the frame body is provided with an air inlet; one end of the first connecting rod is connected to the vane, and the other end is hinged to the frame body; the first connecting rod and the vane are located on the same side of the frame body; the locking mechanism comprises a driving rod and a driven rod; one end of the driven rod is hinged to the driving rod, and the other end is hinged to the first connecting rod; the driving rod drives the driven rod to rotate. When the vane is in a position for closing the air inlet, the driving rod and the driven rod are located on the same straight line, so that a connecting rod mechanism formed by the first connecting rod, the driving rod and the driven rod is in a dead point position; when a torque is applied to the outside of the vane, the first connecting rod cannot rotate, so that the vane cannot be pushed away.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an active air intake grille with a self-locking function and a vehicle thereof. Background Technology

[0002] As the automotive industry upgrades, market demands for vehicles are gradually shifting towards the dual goals of "low fuel consumption" and "high air conditioning comfort." However, in low-temperature environments, cars face a double challenge: on the one hand, fuel consumption increases significantly and engine wear intensifies; on the other hand, the heating effect of the air conditioning deteriorates due to the slow rise in heater coolant temperature.

[0003] To address this issue, active grille shutter technology is widely used: when the vehicle starts or is traveling at high speed, the system actively closes the grille, reducing the amount of air flowing through the engine, decreasing cooling intensity, and helping the engine quickly warm up to its optimal operating temperature. This not only improves the comfort of air conditioning heating but also reduces fuel consumption by optimizing engine operating conditions; at the same time, the closed grille also reduces air resistance, further contributing to energy savings.

[0004] However, most existing active grille shutters use a motor-locked design. When the vehicle speed reaches 150km / h or higher, the blades need to rely on the motor to continuously output torque to keep them closed, which results in higher manufacturing costs. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an active air intake grille with a self-locking function, which can achieve self-locking when rotated to the closed state of the blades, and apply a torque to the outside of the blades so that the blades cannot be pushed open.

[0006] The present invention also proposes a vehicle having the above-mentioned active air intake grille with self-locking function.

[0007] An active air intake grille with a self-locking function according to a first aspect embodiment of the present invention includes:

[0008] The frame has an air intake.

[0009] Blades, used to open or close the air inlet;

[0010] The first connecting rod is connected at one end to the blade and at the other end to the frame. The first connecting rod and the blade are located on the same side of the frame.

[0011] The locking mechanism includes a driving rod and a driven rod. One end of the driven rod is hinged to the driving rod, and the other end is hinged to the first connecting rod. The driving rod drives the driven rod to rotate.

[0012] The active air intake grille has a first state and a second state. In the first state, the blade is in the position of closing the air intake, and the active rod and the driven rod are on the same straight line, so that the linkage mechanism formed by the first connecting rod, the active rod and the driven rod is in the dead point position, and the first connecting rod cannot rotate. In the second state, the included angle between the active rod and the driven rod is less than 180°, and the first connecting rod can drive the blade to rotate.

[0013] The active air intake grille with self-locking function according to an embodiment of the present invention has at least the following beneficial effects: when the blade is in the position of closing the air intake, the active rod and the driven rod are located on the same straight line, so that the linkage mechanism composed of the first connecting rod, the active rod and the driven rod is in the dead point position. When a torque is applied to the outside of the blade, the first connecting rod cannot rotate, thereby ensuring that the blade cannot be pushed open.

[0014] According to some embodiments of the present invention, the first connecting rod includes a bent portion, the bending direction of the bent portion being away from the frame, the driven rod being hinged to the bent portion, and the locking mechanism being located below the bent portion.

[0015] According to some embodiments of the present invention, the blade includes a main body and an edge portion, the edge portion being disposed around the outer periphery of the main body, and in the first state, the main body is inserted through the air inlet, and the edge portion abuts against the edge of the air inlet.

[0016] According to some embodiments of the present invention, the active air intake grille further includes a second link, one end of which is hinged to the blade and the other end of which is hinged to the frame. The hinge point height between the second link and the blade is lower than the hinge point height between the first link and the blade, and the hinge point height between the second link and the frame is lower than the hinge point height between the first link and the frame.

[0017] According to some embodiments of the present invention, the blade is provided with a connecting plate, the connecting plate is fixedly connected to the blade, and the first connecting rod and the second connecting rod are respectively connected to both sides of the connecting plate.

[0018] According to some embodiments of the present invention, the locking mechanism includes a driving mechanism and a transmission rod, the driving mechanism drives the transmission rod to rotate, and one end of the driving rod is fixedly connected to the transmission rod.

[0019] According to some embodiments of the present invention, the transmission rod is provided with a limiting block, and the frame is provided with a first limiting part and a second limiting part. In the first state, the limiting block abuts against the first limiting part, and the second limiting part is used to limit the maximum stroke during the opening process of the blade.

[0020] According to some embodiments of the present invention, the driven rod is connected to the driving rod and / or the first connecting rod via a hinge. The hinge includes a first shaft portion and a second shaft portion, the diameter of the first shaft portion being larger than the diameter of the second shaft portion. The driven rod is provided with a shaft hole that mates with the first shaft portion. The hinge includes a locking portion, and a clearance hole is provided at the transition position between the first shaft portion and the second shaft portion. The locking portion includes a cantilever and a hook located within the clearance hole. One end of the cantilever is connected to the side wall of the clearance hole located on the second shaft portion. The hook is located at the end of the cantilever opposite to the second shaft portion, and the outer diameter of the hook is larger than the diameter of the first shaft portion to restrict the movement of the driven rod toward the second shaft portion.

[0021] According to some embodiments of the present invention, the frame is provided with a third limiting part, which is used to abut against the driving rod in the first state so that the driving rod and the driven rod are kept on the same straight line.

[0022] A vehicle according to a second aspect embodiment of the present invention includes an active grille shutter according to a first aspect embodiment of the present invention.

[0023] The vehicle according to the embodiments of the present invention has at least the following beneficial effects: by adopting the active air intake grille of the first aspect embodiment of the present invention, the active air intake grille can achieve self-locking when rotated to the blade closed state, and when a torque is applied to the outside of the blade, the blade cannot be pushed open.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a rear view of the active air intake grille according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the front side of the active air intake grille is shown;

[0028] Figure 3 for Figure 1 A diagram showing the view after the frame is hidden;

[0029] Figure 4 for Figure 3 An exploded view of the active air intake grille is shown.

[0030] Figure 5 This is a partial schematic diagram of an active air intake grille;

[0031] Figure 6 This is an exploded view of the second link and the frame.

[0032] Figure 7 for Figure 6 A schematic diagram of the first connector is shown;

[0033] Figure 8 This is a schematic diagram of the first link.

[0034] Figure label:

[0035] 100. Frame; 110. First limiting part; 120. Second limiting part; 130. Third limiting part; 140. Positioning post; 150. Threaded post; 160. Second positioning hole; 200. Blade; 210. Main body; 220. Edge part; 230. Connecting plate; 300. First connecting rod; 310. Bending part; 320. First shaft part; 330. Second shaft part; 340. Clearance hole; 350. Cantilever; 360. Hook; 400. Driving rod; 500. Driven rod; 600. Drive mechanism; 700. Transmission rod; 710. Limiting block; 900. Second connecting rod; 910. First connecting piece; 911. First positioning hole; 912. Through hole; 913. Positioning protrusion; 914. Arc-shaped part; 920. Screw; 930. Second connecting piece. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] Reference Figure 1 and Figure 2 The active air intake grille with self-locking function according to a first aspect embodiment of the present invention includes a frame 100, blades 200, a first connecting rod 300, and a locking mechanism. The frame 100 serves as the basic frame of the active air intake grille, and an air intake port for airflow is provided on the frame 100. Other components (blades 200, connecting rods, etc.) are all mounted with the frame 100 as the mounting reference. The blades 200 are key components controlling the opening and closing of the air intake port. Their movement achieves the "opening" or "closing" of the air intake port: when the blades 200 rotate to cover the air intake port, the air intake port is closed, reducing the airflow through the engine; when the blades 200 rotate to leave the air intake port area, the air intake port opens, allowing normal airflow. The first connecting rod 300 is a transmission rod 700 connecting the blades 200 and the frame 100. One end of the first connecting rod 300 is connected to the blades 200, and the other end is hinged to the frame 100. The first connecting rod 300 and the blades 200 are located on the same side of the frame 100. The locking mechanism includes a driving rod 400 and a driven rod 500. One end of the driven rod 500 is hinged to the driving rod 400, and the other end is hinged to the first connecting rod 300. The driving rod 400 drives the driven rod 500 to rotate, forming a linkage structure that can rotate relative to each other. That is, the driving rod 400, as a power input component, can rotate around its fixed hinge point under the action of external force. The driven rod 500 plays the role of transmitting the motion of the driving rod 400. When the driving rod 400 rotates, it will drive the driven rod 500 to rotate synchronously through the hinge point, thereby affecting the state of the first connecting rod 300.

[0041] The active air intake grille has a first state and a second state. In the first state, the blades 200 are in the closed intake position, the active rod 400 and the driven rod 500 are on the same straight line, and the locking mechanism is in the locked state. This makes the linkage mechanism consisting of the first link 300, the active rod 400, and the driven rod 500 in a dead-point position. If an external force (such as high-speed airflow impacting the blades 200) is used to push the blades 200 open, the line of action of the external force will be transmitted along the collinear direction of the active rod 400 and the driven rod 500, and it will not generate a torque to make the first link 300 rotate around the hinge point. That is, the first link 300 cannot rotate. This "dead-point locking" state ensures that the blades 200 remain tightly closed even at high speeds (such as 150 km / h) and does not require the motor to output torque to maintain the blades 200 in the closed intake position.

[0042] In the second state, the locking mechanism is in the released state, the angle between the driving rod 400 and the driven rod 500 is less than 180°, and the first connecting rod 300 can drive the blade 200 to rotate. When it is necessary to open the air inlet, the driving rod 400 rotates in the opposite direction under the action of external power, driving the driven rod 500 to swing synchronously. At this time, the angle between the driving rod 400 and the driven rod 500 gradually decreases (less than 180°), and the linkage mechanism composed of the first connecting rod 300, the driving rod 400, and the driven rod 500 is out of the dead position. The first connecting rod 300 can rotate freely around the hinge point of the frame 100, thereby driving the blade 200 to rotate synchronously.

[0043] The active air intake grille of the first aspect of the present invention achieves mechanical locking when the blades 200 are closed by using a cleverly designed linkage mechanism and the "dead point" characteristic, without the need for a motor to continuously provide torque, thereby reducing energy consumption and cost.

[0044] Reference Figure 2 and Figure 4 The blade 200 includes a main body 210 and an edge portion 220. The edge portion 220 is disposed around the outer periphery of the main body 210. In the first state, the main body 210 passes through the air inlet, and the edge portion 220 abuts against the edge of the air inlet. The main body 210 is the core part of the blade 200. As the main structure for blocking the air inlet, its shape and size match the air inlet of the frame 100, and it can cover the main flow area of ​​the air inlet. The edge portion 220 is disposed integrally around the outer periphery of the main body 210 (which can be understood as the part extending outward from the edge of the main body 210), forming a structure similar to a "border". Its size is slightly larger than the main body 210 and also slightly larger than the edge range of the air inlet. When the active air intake grille is in the first state, the main body 210 of the blade 200 will penetrate into the air inlet of the frame 100, that is, the position of the main body 210 coincides with the spatial area of ​​the air inlet, directly blocking the flow path of air through the air inlet, and playing the main blocking role. Simultaneously, the edge portion 220 surrounding the main body 210 will tightly abut against the edge of the air inlet (the border portion of the frame 100 that forms the air inlet). This abutment, through the rigid contact between the edge portion 220 and the frame 100, forms a sealing structure between the main body 210 and the air inlet, which can reduce or even prevent air leakage from the gap between the main body 210 and the edge of the air inlet, further enhancing the sealing performance when the air inlet is closed. A certain gap can be provided between the edge of the main body 210 and the air inlet to prevent the blades 200 from interfering with each other when entering and exiting the air inlet.

[0045] Reference Figure 3The locking mechanism includes a drive mechanism 600 and a transmission rod 700. The drive mechanism 600 drives the transmission rod 700 to rotate, and one end of the drive rod 400 is fixedly connected to the transmission rod 700. Besides using a conventional electric drive structure, the drive mechanism 600 can also be replaced by a hydraulic drive, pneumatic drive, or other structures. The transmission rod 700 is an intermediate component for transmitting power; one end is connected to the drive mechanism 600 to receive power from it; the other end is fixedly connected to the drive rod 400, which can be used to change the direction of force transmission, facilitating the optimized layout of the overall structure.

[0046] Understandably, the force transmitted from the driven rod 500 to the first connecting rod 300 generates a torque that causes the first connecting rod 300 to rotate. This means the drive mechanism 600 of the locking mechanism can also serve as the power source for opening or closing the drive blade 200. Therefore, the drive mechanism 600 of the locking mechanism not only controls the linkage mechanism to enter or disengage from its dead point (achieving locking or unlocking), but also serves as the power source for opening or closing the drive blade 200. This achieves integrated power utilization, reduces the number and weight of components, avoids a complex dual-system design (one system for opening and closing, another for locking), and lowers production and maintenance costs.

[0047] Reference Figure 1 , Figure 3 and Figure 5 The active air intake grille also includes a second link 900. One end of the second link 900 is hinged to the blade 200, and the other end is hinged to the frame 100. The hinge point height between the second link 900 and the blade 200 is lower than the hinge point height between the first link 300 and the blade 200, and the hinge point height between the second link 900 and the frame 100 is also lower than the hinge point height between the first link 300 and the frame 100. The second link 900 added to the active air intake grille, through a specific hinge position design, forms a stable four-bar structure with the first link 300, the blade 200, and the frame 100, preventing the blade 200 from tilting or wobbling during rotation and ensuring its precise movement trajectory. It also distributes the force on the blade 200; when the blade 200 is impacted by airflow, the two links can share the force transmission, reducing the load on a single link and improving structural durability. The linkage between the first link 300 and the locking mechanism makes the blade 200 move more smoothly when opening or closing, avoiding jamming problems caused by single-point support.

[0048] Reference Figure 1 , Figure 3 and Figure 5The transmission rod 700 is equipped with a limiting block 710, and the frame 100 is equipped with a first limiting part 110 and a second limiting part 120. When the active air intake grille is in the first state, the limiting block 710 on the transmission rod 700 will abut tightly against the first limiting part 110 of the frame 100. This abutting relationship plays a role in "mechanical locking": on the one hand, it restricts the transmission rod 700 from continuing to rotate through hard contact, ensuring that the active rod 400 and the driven rod 500 are stably kept on the same straight line (dead point position), and preventing the blade 200 from being accidentally opened due to external force or misoperation; on the other hand, it also provides a clear mechanical positioning reference for the position in the first state, ensuring the accuracy of the blade 200 when it is closed.

[0049] When the active air intake grille is in the second state (during the opening of the blade 200), the second limiting part 120 of the frame 100 is responsible for limiting the maximum opening angle of the blade 200. Specifically, as the drive mechanism 600 drives the transmission rod 700, the drive rod 400, and the driven rod 500 to move, the first connecting rod 300 will drive the blade 200 to gradually open the air intake. When the blade 200 rotates to the preset maximum opening angle, the limiting block 710 will abut against the second limiting part 120 to prevent the blade 200 from continuing to rotate, thereby avoiding structural interference caused by the blade 200 opening too much (such as collision with the frame 100 or other components), or affecting the engine's cooling efficiency, air resistance, and other performance due to an excessively large opening angle.

[0050] Reference Figure 1 , Figure 3 and Figure 4 The blade 200 is equipped with a connecting plate 230, which is fixedly connected to the blade 200. The first connecting rod 300 and the second connecting rod 900 are respectively connected to both sides of the connecting plate 230. The blade 200 of the active air intake grille needs to achieve rotational movement (opening and closing) through a connecting rod mechanism, and the installation of the connecting rod requires a stable connection reference. The blade 200 itself is usually a thin-walled structure. Directly machining the connecting rod hinge points (such as bolt holes, bushings) on the blade 200 can easily lead to the following problems: 1. Opening holes or installing bushings on the thin-walled blade 200 will weaken its structural strength, and it is prone to deformation under the long-term tension / thrust of the connecting rod; 2. When the blade 200 is injection molded or stamped, there may be tolerances in the position of the hinge point (such as hole offset), which will cause the movement trajectory of the connecting rod to deviate after installation. By using the connecting plate 230 as an intermediate transition component, the structural design of the blade 200 is simplified. It is not necessary to directly machine the complex hinge structure on the blade 200. Instead, the connection function is concentrated on the connecting plate 230, which is convenient for processing and assembly.

[0051] Reference Figure 5The frame 100 is provided with a third limiting part 130, which is used to abut against the active rod 400 in the first state, so that the active rod 400 and the driven rod 500 are kept on the same straight line. One of the core challenges of the active air intake grille is "ensuring the locking reliability of the blades 200 when they are closed". If the dead point position (the active rod 400 and the driven rod 500 are collinear) deviates due to driving error or vibration, the blades 200 may be blown open by the high-speed airflow, resulting in failure of engine compartment insulation and increased fuel consumption. The third limiting part 130 is provided to completely solve this problem through mechanical hard constraint.

[0052] When the active air intake grille is in its first state, the blades 200 must stably close the air intake, and the active rod 400 and the driven rod 500 must be strictly kept in the same straight line (i.e., at an angle of 180°) to ensure that the linkage mechanism is in a dead position and to lock the first linkage 300. At this time, the third limiting part 130 will directly abut against the active rod 400. This rigid contact prevents the active rod 400 from rotating in a direction deviating from the straight line through mechanical limiting, thereby forcibly constraining the position of the active rod 400 and indirectly ensuring that the driven rod 500 and the active rod 400 are always in the same straight line.

[0053] This design further enhances the stability of the first state: even if the vehicle vibrates during driving or there are small gaps in the transmission system, the contact between the third limiting part 130 and the active rod 400 can provide reliable support for the active rod 400, preventing it from deviating at an angle and causing dead point failure, thereby ensuring the stability of the blade 200 in the closed state, reducing unnecessary energy consumption (no need for the drive mechanism 600 to provide additional torque maintenance), and improving the reliability of the structure operation.

[0054] Understandably, in some embodiments, the third limiting part 130 is equipped with a magnet, the active rod 400 is equipped with an electromagnet that cooperates with the magnet, and the drive mechanism 600 is constructed as a motor, with the current direction of the electromagnet being consistent with the current direction of the motor. For example, when the motor rotates forward, causing the blade 200 to close the air inlet, the magnetism of the electromagnet is opposite to that of the magnet, helping the active rod 400 to actively approach the third limiting part 130, allowing the active rod 400 to reach the dead point position as quickly as possible and complete the limiting action. Because the current direction of the electromagnet is consistent with that of the motor, the magnetism generated by the electromagnet is opposite to (opposite poles) to the magnetism of the third limiting part 130. According to the principle of "opposite poles attract," an attractive force is generated between the electromagnet and the magnet. This attractive force will actively "pull" the active rod 400 closer to the third limiting part 130, accelerating the active rod 400 to reach the position where it abuts against the third limiting part 130 (i.e., the dead point position), thereby quickly completing the limiting action of closing the blade 200 and improving the response speed and accuracy of the closing process. When the motor reverses, the electromagnet's magnetism is the same as the magnet's, helping the drive lever 400 to actively move away from the third limit part 130, allowing it to quickly move away from the dead position and complete the opening action of the blade 200. The direction of the electromagnet current changes synchronously with the motor's reverse rotation, generating magnetism that is the same as (same pole) as the magnet of the third limit part 130. According to the principle of "like poles repel," a repulsive force is generated between the electromagnet and the magnet. This repulsive force actively "pushes" the drive lever 400 away, causing it to quickly move away from the third limit part 130, accelerating its escape from the dead position, thus completing the opening action of the blade 200 more quickly and reducing the lag in the opening process.

[0055] In addition, an attractive force is generated between the electromagnet and the magnet. This attractive force helps to keep the driving rod 400 and the driven rod 500 in the same straight line, avoiding the problem of dead point failure caused by misalignment of the driving rod 400 and the driven rod 500 due to vehicle vibration or other reasons.

[0056] It is understandable that only one of the first limiting part 110 and the third limiting part 130 can be provided, or both can be provided simultaneously. For example, when the first limiting part 110 and the third limiting part 130 are provided simultaneously, and the active air intake grille is in the first state, the limiting block 710 on the transmission rod 700 contacts the first limiting part 110 of the frame 100, while the active rod 400 and the third limiting part 130 maintain a certain gap, such as a gap of 0.5mm, to prevent over-positioning. When the limiting block 710 wears down due to prolonged contact with the first limiting part 110, the active rod 400 and the third limiting part 130 can gradually come into contact, achieving a double-safety effect.

[0057] Reference Figure 3The first link 300 includes a bent portion 310, which bends away from the frame 100. The driven rod 500 is hinged to the bent portion 310. One of the core challenges of the active air intake grille is "how to achieve reliable blade 200 control within a limited space." Although the traditional straight link design is simple in structure, it may cause installation difficulties in complex front-end layouts due to "excessive link extension path" or "interference with other components." The "bent portion 310" design of the first link 300 is a core means of optimizing the spatial layout by changing the link shape.

[0058] If the first connecting rod 300 is a straight rod (without the curved part 310), the driven rod 500 needs to be hinged at a certain position on the straight rod (usually near the end of the blade 200). In this case, to avoid interference between the driven rod 500 and the blade 200, the frame 100, or other components, the locking mechanism needs to extend outward (away from the frame 100), resulting in: the rotation center of the driving rod 400 (the hinge point with the transmission rod 700) needing to be away from the frame 100, increasing the installation space requirement for the drive mechanism 600 (such as a motor); the swing path of the driven rod 500 may collide with adjacent components (such as radiator grilles, subwoofers), requiring an additional avoidance structure, further increasing the volume.

[0059] In this embodiment of the invention, the first connecting rod 300, by providing a curved portion 310, allows the locking mechanism to be positioned below the curved portion 310, closer to the frame 100. This means the locking mechanism can be installed closer to the surface of the frame 100, reducing the space occupied in the longitudinal direction (perpendicular to the frame 100). This results in a denser and more coordinated layout of all components of the entire active air intake grille, achieving more efficient space utilization within a limited space and avoiding installation limitations caused by a loose structure.

[0060] Reference Figure 6 and Figure 7The active air intake grille also includes a first connector 910, which restricts the rotation of connecting rods (such as first connecting rod 300, second connecting rod 900, etc.) on the frame 100. The frame 100 is provided with a positioning post 140 and a threaded post 150. The first connector 910 is provided with a first positioning hole 911 and a through hole 912. The positioning post 140 passes through the first positioning hole 911, and the threaded post 150 has a threaded hole. The threaded hole and the through hole 912 are positioned correspondingly. A screw 920 passes through the through hole 912 and connects to the threaded hole, fixing the first connector 910 to the frame 100. The frame 100 is also provided with a second positioning hole 160. One section of the first connector 910 is provided with a positioning protrusion 913, which passes through the second positioning hole 160. The first connector 910 is also provided with an arc-shaped portion 914, which cooperates with the pivot of the connecting rod. Positioning protrusions 913 and first positioning holes 911 are respectively located at both ends of the arc-shaped portion 914. During assembly, the positioning protrusions 913 of the first connector 910 pass through the second positioning hole 160 of the frame 100, and the positioning pins 140 of the frame 100 pass through the first positioning hole 911 of the first connector 910. Through these two sets of "convex-concave fits", the position of the first connector 910 is restricted from two directions, ensuring that its installation angle and position on the frame 100 are accurate, providing a stable reference for the rotation of the connecting rod. After the screw 920 passes through the through hole 912 of the first connector 910, it is tightened and fixed with the threaded hole of the threaded pin 150, firmly locking the first connector 910 on the frame 100 and preventing it from loosening when the connecting rod moves.

[0061] Reference Figure 5 In some embodiments, the active air intake grille further includes a second connector 930, which is used to restrict the rotation of the connecting rods (such as the first connecting rod 300, the second connecting rod 900, etc.) on the frame 100. The difference between the second connector 930 and the first connector 910 is that the second connector 930 has a set of first positioning holes 911 and through holes 912 on each side of the arc-shaped portion 914.

[0062] Reference Figure 8The driven rod 500 is connected to the driving rod 400 and / or the first connecting rod 300 via a hinge. The hinge includes a first shaft portion 320 and a second shaft portion 330. The diameter of the first shaft portion 320 is larger than the diameter of the second shaft portion 330. The driven rod 500 is provided with a shaft hole that mates with the first shaft portion 320. The hinge is provided with a locking part. A clearance hole 340 is provided at the transition position between the first shaft portion 320 and the second shaft portion 330. The locking part includes a cantilever 350 and a hook 360 located in the clearance hole 340. One end of the cantilever 350 is connected to the side wall of the clearance hole 340 located in the second shaft portion 330. The hook 360 is located at the end of the cantilever 350 away from the second shaft portion 330. The outer diameter of the hook 360 is larger than the diameter of the first shaft portion 320 to restrict the movement of the driven rod 500 toward the second shaft portion 330. When the driven rod 500's shaft hole is fitted into the first shaft portion 320, the latch 360 is temporarily pressed into the clearance hole 340 due to the elasticity of the cantilever 350 (to avoid obstructing assembly). After the driven rod 500 is fully fitted into the first shaft portion 320, the cantilever 350 elastically returns to its original position, and the latch 360 pops out and is located on the side of the first shaft portion 320 away from the second shaft portion 330. Since the outer diameter of the latch 360 is larger than the diameter of the first shaft portion 320 and larger than the diameter of the driven rod 500's shaft hole, it can firmly block the driven rod 500, restricting its movement towards the second shaft portion 330 and preventing the driven rod 500 from falling off the hinge.

[0063] The present invention also proposes a vehicle according to a second aspect embodiment, including an active air intake grille according to a first aspect embodiment of the present invention, wherein the active air intake grille is disposed at the front of the vehicle.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An active air intake grille with a self-locking function, characterized in that, include: The frame has an air intake. Blades, used to open or close the air inlet; The first connecting rod is connected at one end to the blade and at the other end to the frame. The first connecting rod and the blade are located on the same side of the frame. The locking mechanism includes a driving rod and a driven rod. One end of the driven rod is hinged to the driving rod, and the other end is hinged to the first connecting rod. The driving rod drives the driven rod to rotate. The active air intake grille has a first state and a second state. In the first state, the blades are in the position of closing the air intake, and the active rod and the driven rod are on the same straight line, so that the linkage mechanism formed by the first connecting rod, the active rod, and the driven rod is in a dead position, and the first connecting rod cannot rotate. In the second state, the angle between the active rod and the driven rod is less than 180°, and the first connecting rod can drive the blades to rotate. The frame is provided with a third limiting part, and the third limiting part is provided with a magnet. The active rod is provided with an electromagnet that cooperates with the magnet. The locking mechanism includes a driving mechanism and a transmission rod. The driving mechanism drives the transmission rod to rotate, and one end of the active rod is fixedly connected to the transmission rod. The driving mechanism is constructed as a motor, and the current direction of the electromagnet is consistent with the current direction of the motor. When the motor rotates forward, causing the blades to close the air intake, the magnetism of the electromagnet is opposite to that of the magnet. When the motor rotates in reverse, the magnetism of the electromagnet is the same as that of the magnet.

2. The active air intake grille with self-locking function according to claim 1, characterized in that, The first connecting rod includes a bent portion, the bending direction of which is away from the frame, the driven rod is hinged to the bent portion, and the locking mechanism is located below the bent portion.

3. The active air intake grille with self-locking function according to claim 1, characterized in that, The blade includes a main body and an edge portion. The edge portion is disposed around the outer periphery of the main body. In the first state, the main body is inserted through the air inlet, and the edge portion abuts against the edge of the air inlet.

4. The active air intake grille with self-locking function according to claim 1, characterized in that, The active air intake grille also includes a second link, one end of which is hinged to the blade and the other end of which is hinged to the frame. The hinge point between the second link and the blade is lower than the hinge point between the first link and the blade, and the hinge point between the second link and the frame is lower than the hinge point between the first link and the frame.

5. The active air intake grille with self-locking function according to claim 4, characterized in that, The blade is provided with a connecting plate, which is fixedly connected to the blade. The first connecting rod and the second connecting rod are respectively connected to both sides of the connecting plate.

6. The active air intake grille with self-locking function according to claim 1, characterized in that, The transmission rod is provided with a limiting block, and the frame is provided with a first limiting part and a second limiting part. In the first state, the limiting block abuts against the first limiting part, and the second limiting part is used to limit the maximum stroke during the opening process of the blade.

7. The active air intake grille with self-locking function according to claim 1, characterized in that, The driven rod is connected to the driving rod and / or the first connecting rod via a hinge. The hinge includes a first shaft portion and a second shaft portion, the diameter of the first shaft portion being larger than the diameter of the second shaft portion. The driven rod is provided with a shaft hole that mates with the first shaft portion. The hinge is provided with a locking portion. A clearance hole is provided at the transition position between the first shaft portion and the second shaft portion. The locking portion includes a cantilever and a hook located within the clearance hole. One end of the cantilever is connected to the side wall of the clearance hole located on the second shaft portion. The hook is located at the end of the cantilever that is away from the second shaft portion. The outer diameter of the hook is larger than the diameter of the first shaft portion to restrict the movement of the driven rod toward the second shaft portion.

8. A vehicle, characterized in that, Includes the active air intake grille as described in any one of claims 1 to 7.

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