Active air-inlet grille
By setting a limit hull in the active air intake grille and adopting a single motor bias, the problem of asynchronousness of the active air intake grille movement mechanism in the prior art is solved, and higher synchronization and stability are achieved, while reducing costs.
Patent Information
- Application Number
- CN202421247077.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing active air intake grille movement mechanism has great asynchronousness, resulting in the functionality far from meeting the design requirements, or the dual motor solution is required to meet the functional needs, but this increases the cost.
By setting a limiting hull in the active air intake grille, the synchronization of blade movement is improved, while avoiding the use of dual motors, a single motor biasing scheme is adopted, and a limiting mechanism is added between moving parts, so that the motion clearance is within a controllable range.
It realizes improving the synchronization of blade motion without using dual motors, reducing the deviation of blade motion angle, improving overall compactness and stability, and reducing costs.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile parts, in particular to an active air intake grille. Background Art
[0002] With the implementation of energy-saving and emission-reduction policies, vehicles have higher and higher requirements for fuel consumption. In order to reduce fuel consumption, in addition to improving the fuel-fuel ratio and reducing the weight of the vehicle, the OEM considers improving the aerodynamic state of the vehicle and reducing wind resistance to achieve the purpose of saving fuel, energy saving and emission reduction. The active air intake grille is a part set at the front end of the vehicle body. It can provide higher engine thermal efficiency during the startup phase, and can also adjust the intake volume by controlling the opening and closing angle of the blades at different vehicle speeds to obtain the minimum wind resistance coefficient. It is widely used because it can save energy and fuel.
[0003] The active air intake grille includes grille blades and a motor for driving the blades to rotate. The active air intake grille movement mechanism of the current vehicle on the market has a large degree of asynchronism. For example, the angle of the active blade close to the motor side is 90°, while the angle of the driven blade far from the motor is 80°, and its functionality is far from meeting the design requirements. Alternatively, a dual-motor solution is used to meet the functional requirements of the active air intake grille, but the cost of the active air intake grille is increased. Utility Model Content
[0004] The purpose of the utility model is to provide an active air intake grille, which can improve the synchronization of blade movement without using dual motors.
[0005] The purpose of the utility model can be achieved by the following technical solution: an active air intake grille, comprising a frame, active blades, driven blades, connecting rods and a driving member;
[0006] The driving member is arranged at one side of the frame and connected to the active blade, the active blade is connected to the driven blade through a connecting rod, and a limiting convex bump for limiting the movement gap is arranged on the driven blade.
[0007] Preferably, the active blade is rotatably mounted on the frame via an active blade shaft, one end of the active blade shaft is connected to the driving member, and the other end is rotatably mounted on the frame. In the utility model, the active blade includes an active blade body and an active blade shaft fixedly connected to the active blade body.
[0008] Further preferably, the active blade shaft is key-connected to the driving member.
[0009] Preferably, the driven blade is rotatably arranged on the frame via a driven blade shaft, one end of the driven blade shaft is mounted on the frame via a pressure plate, and the other end passes through the frame and is provided with a limiting convex bump. In the utility model, the driven blade includes a driven blade body and a driven blade shaft fixedly connected to the driven blade body.
[0010] Further preferably, the limiting convex bump is arranged on the side of the end of the driven blade shaft, and the end surface close to the driven blade side is a plane.
[0011] Preferably, the active air intake grille includes an active blade and a plurality of driven blades, the active blade and the driven blades are arranged in two rows and multiple layers, and a connecting rod is provided between the two rows of blades and connected to the active blade and each driven blade.
[0012] Further preferably, the connecting rod is connected to the active blade body and each driven blade body.
[0013] Further preferably, the middle portion of the frame is a middle support frame, two rows of blades are respectively arranged on both sides of the middle support frame, and the driven blades are provided with limiting convex bumps for limiting the movement gap between the driven blades and the middle support frame.
[0014] More preferably, the gap between the limiting convex hump and the middle support frame is 0-1 mm, that is, the distance between the end surface of the limiting convex hump close to the driven blade side and the end surface of the middle support frame close to the limiting convex hump is 0-1 mm.
[0015] Preferably, the rotational movement range of the active blade and the driven blade is 0 to 90°, and the rotational movement range of the limiting convex hull is not within the range of 0 to 90°.
[0016] Further preferably, the central angle of the blade shaft occupied by the limiting convex hump does not exceed 180°.
[0017] More preferably, the central angle of the blade shaft occupied by the limiting convex hump does not exceed 90°.
[0018] More preferably, the angle between the limiting convex hull and the starting position of the blade rotation is greater than 90°.
[0019] Preferably, the driving member is a motor.
[0020] Further preferably, the output hole of the motor is key-connected to the active blade shaft.
[0021] Preferably, the frame is mounted on the front bumper of the vehicle and is located inside the grille.
[0022] Preferably, the active blades and the driven blades are provided with reinforcing ribs.
[0023] Compared with the prior art, the utility model has the following beneficial effects:
[0024] 1. The utility model improves the synchronization of blade movement without using dual motors by setting a limiting convex hump.
[0025] 2. The utility model sets a limiting convex hump so that the movement gap is within a controllable range, thereby improving the overall compactness and stability, thereby reducing the movement angle deviation of the blade and improving the synchronization of the blade movement.
[0026] 3. Due to insufficient air intake of the whole vehicle, the motor is not allowed to be arranged at the Y0 position. The utility model increases the air intake of the active air intake grille and improves the freedom of the whole vehicle styling by arranging the motor offset. However, the motor offset will cause the movement of the blade areas on both sides of Y0 to be asynchronous. The conventional design needs to arrange motors on both sides of the active air intake grille to improve the synchronization of the active air intake grille movement. However, the dual motors increase the cost. Therefore, the utility model provides a single-motor offset active air intake grille and a blade synchronization movement improvement mechanism, adopts a single-motor offset solution, and adds a limiting mechanism between the moving parts to make the movement gap within a controllable range. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a front schematic diagram of the active air intake grille of the utility model;
[0028] Figure 2 It is a schematic diagram of the back side of the active air intake grille of the utility model;
[0029] Figure 3 It is an exploded view of the active air intake grille of the utility model;
[0030] Figure 4 It is a partial enlarged view of the active air intake grille of the utility model;
[0031] Figure 5 This is a schematic diagram of the position of the limiting convex hull of the utility model;
[0032] Figure 6 It is a schematic diagram of the morphology of the limiting convex hull of the utility model;
[0033] Figure 7 A schematic diagram showing the rotational motion range of the blade and the limiting convex hull;
[0034] Figure 8 It is a schematic diagram of blade angle deviation when no limiting convex hull is set;
[0035] Fig. 9 Schematic diagram of blade angle deviation with a limiting convex hull;
[0036] Fig.10 is a schematic diagram of the limit gap;
[0037] In the figure: 1-frame, 11-middle support frame, 2-active blade, 21-active blade shaft, 3-driven blade, 30-driven blade body, 31-driven blade shaft, 32-right driven blade, 33-left second driven blade, 34-right second driven blade, 35-left third driven blade, 36-right third driven blade, 4-connecting rod, 5-driving member, 6-limiting convex package, 7-pressure plate, 71-left pressure plate, 72-right pressure plate, 8-screw. DETAILED DESCRIPTION
[0038] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.
[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0040] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0041] Example 1
[0042] An active air intake grille, such as Figures 1-2 As shown, it includes a frame 1, active blades 2, driven blades 3, connecting rods 4 and driving members 5.
[0043] In this embodiment, the driving member 5 is a motor, which is arranged on one side of the frame 1 and connected to the active blade 2. The active blade 2 is connected to the driven blade 3 through a connecting rod 4. The motor can drive the active blade 2 to rotate, and the active blade 2 drives the connecting rod 4 to move, thereby driving the driven blade 3 to rotate.
[0044] Furthermore, in this embodiment, a limiting convex hump 6 for limiting the movement clearance is provided on the driven blade 3 .
[0045] This embodiment adopts a single motor offset solution to increase the air intake volume of the active air intake grille, and at the same time adds a limiting mechanism between the moving parts so that the movement gap is within a controllable range, thereby improving the compactness and stability of the system and reducing the movement angle deviation of the blades.
[0046] Example 2
[0047] An active air intake grille, wherein the middle part of the frame 1 is a middle support frame 11, and multiple layers of blades are respectively arranged on both sides of the middle support frame 11. Among them, the uppermost layer on the left side of the middle support frame 11 is an active blade 2, and the rest are driven blades 3. The active blade 2 is rotatably arranged on the frame 1 through an active blade shaft 21, one end of the active blade shaft 21 is connected to the motor on one side of the frame 1, and the other end passes through the middle support frame 11 and is rotatably arranged on the middle support frame 11. The driven blade 3 is rotatably arranged on the frame 1 through a driven blade shaft 31, one end of the driven blade shaft 31 is installed on one side of the frame 1 through a pressure plate 7, and the other end passes through the middle support frame 11 and is provided with a limiting convex bump 6 on the side of the end.
[0048] like Figure 4 As shown, the connecting rod 4 is arranged between the left and right rows of blades, connected to the active blade 2 and each driven blade 3, and the connection position is offset from the blade shaft. When the motor drives the active blade 2 to rotate, it will drive the connecting rod 4 to move, and then drive the movement of the connection position between the driven blade 3 and the connecting rod 4, and finally realize the rotation of the driven blade 3 on the frame 1. The rest is the same as embodiment 1.
[0049] Example 3
[0050] An active air intake grille, the motor is arranged on the left side of the assembly, the top left side is the active blade 2, the middle is the connecting rod 4, and the remaining five are driven blades 3. One end of the blade is directly inserted into the frame, and the other end is installed on the frame 1 through a pressure plate 7, and the pressure plate 7 is installed on the frame 1 through screws 8.
[0051] like Figure 3 As shown, the active air intake grille of this embodiment is mainly divided into two parts: a. motion mechanism part, b. bracket part. The motion mechanism part mainly includes the left first active blade 2, the right first driven blade 32, the left second driven blade 33, the right second driven blade 34, the left third driven blade 35, the right third driven blade 36, the connecting rod 4, and the motor; the bracket part mainly includes the frame 1, the left pressure plate 71, and the right pressure plate 72. During installation, a. install the left second driven blade 33, the left third driven blade 35, the connecting rod 4, the right first driven blade 32, the right second driven blade 34, and the right third driven blade 36 on the frame 1 in sequence; b. insert the left first active blade 2 into the motor output hole and install it into the frame 1; c. install the left pressure plate 71 and the right pressure plate 72; d. install the active air intake grille on the whole vehicle; e. debug the motor and check the movement.
[0052] like Figures 5-6The figure is a schematic diagram of the limiting structure of the active air intake grille blade and frame of this embodiment. a. The limiting convex hull 6 on the blade can limit the movement gap between the blade and the frame; b. The rotation range of the blade driven by the motor is 0 to 90 degrees. In order to prevent the convex hull on the blade from getting stuck with the frame during movement, the convex hull design angle needs to be outside the range of 0 to 90 degrees (such as Figure 7 As shown, the solid line is the initial position of the blade and the convex hull, and the dotted line is the terminal position of the blade and the convex hull. The design angle of this embodiment is 105°, that is, the rotational movement range of the convex hull is 105° to 195°.
[0053] After CAE motion simulation, such as Figures 8-9 As shown in the figure, it is a schematic diagram of optimizing the angle deviation of the front and rear blades. In the state of unlimited convex hull, the maximum angle deviation of the blade movement is 6°. After adding the limited convex hull, the limit gap d is 0.3mm (as shown in the figure). Fig.10 ), the maximum angular deviation of the blade movement is 1.4°.
[0054] The above is only a preferred embodiment of the utility model, and is not intended to limit the scope of the utility model. The above embodiments of the utility model can also be changed in various ways. For example, the angle design of the position-limiting convex hull of the utility model is not limited to 105°, but can be any other angle that is not within the range of the motion angle; the position-limiting gap of the utility model is 0.3mm, and other position-limiting gaps can also be considered; the utility model is not limited to the arrangement position of the motor, such as the motor can be in different positions such as the left side, right side, top side, and bottom side of the frame.
[0055] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.
Claims
1. An active air intake grille, characterized in that: It comprises a frame (1), an active blade (2), a driven blade (3), a connecting rod (4) and a driving member (5); The driving member (5) is arranged on one side of the frame (1) and connected to the active blade (2); the active blade (2) is connected to the driven blade (3) via a connecting rod (4); and a limiting convex bump (6) for limiting the movement gap is provided on the driven blade (3).
2. The active air intake grille according to claim 1, characterized in that: The active blade (2) is rotatably mounted on the frame (1) via an active blade rotating shaft (21); one end of the active blade rotating shaft (21) is connected to the driving member (5), and the other end is rotatably mounted on the frame (1).
3. The active air intake grille according to claim 2, characterized in that: The active blade rotating shaft (21) is key-connected to the driving member (5).
4. The active air intake grille according to claim 1, characterized in that: The driven blade (3) is rotatably arranged on the frame (1) via a driven blade rotating shaft (31); one end of the driven blade rotating shaft (31) is mounted on the frame (1) via a pressing plate (7), and the other end passes through the frame (1) and is provided with a limiting convex bump (6).
5. The active air intake grille according to claim 4, characterized in that: The limiting convex bump (6) is arranged on the side of the end of the driven blade rotating shaft (31), and the end surface close to the driven blade (3) is a plane.
6. The active air intake grille according to claim 1, characterized in that: It comprises an active blade (2) and a plurality of driven blades (3), wherein the active blade (2) and the driven blades (3) are arranged in two rows and in multiple layers, and a connecting rod (4) is arranged between the two rows of blades and connected to the active blade (2) and each driven blade (3).
7. The active air intake grille according to claim 6, characterized in that: The middle part of the frame (1) is a middle support frame (11), two rows of blades are respectively arranged on both sides of the middle support frame (11), and a limiting convex bump (6) is provided on the driven blade (3) for limiting the movement gap between the driven blade (3) and the middle support frame (11).
8. The active air intake grille according to claim 7, characterized in that: The gap between the limiting convex bump (6) and the middle support frame (11) is 0 to 1 mm.
9. The active air intake grille according to claim 1, characterized in that: The rotational movement range of the active blade (2) and the driven blade (3) is 0 to 90°, and the rotational movement range of the limiting convex hump (6) is not within the range of 0 to 90°.
10. The active air intake grille according to claim 1, characterized in that: The driving member (5) is a motor, and the frame (1) is mounted on the front bumper of the automobile and is located on the inner side of the grille.