Flexible blade group for active air-inlet grille

Abstract

The utility model relates to a flexible blade group for an active air-inlet grille, which comprises blades and a flexible shaft, a plurality of blades are arranged on the flexible shaft, the flexible shaft consists of first rotating shafts and second rotating shafts, N first rotating shafts and N-1 second rotating shafts are sequentially connected, and each blade is respectively arranged on one first rotating shaft in a penetrating manner. Compared with the prior art, the integral forming of the plurality of blades and the flexible shaft can be realized, and the cost rise and the technical difficulty caused by mistake proofing and assembly are avoided; according to the utility model, the blades and the flexible shaft are assembled in advance, so that the problem of misassembly of the blades can be conveniently checked, sub-station assembly can also be realized, and the overall assembly efficiency of the active air-inlet grille is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air inlet grille, especially to a flexible blade group for active air inlet grille. BACKGROUND

[0002] With the landing of energy-saving and emission-reducing policy, the requirement of vehicle for fuel consumption is higher and higher. In order to reduce fuel consumption, in addition to improving oil ratio and reducing vehicle weight, the host factory considers improving the aerodynamic state of the vehicle, reducing wind resistance, achieving the purpose of saving fuel and energy-saving and emission-reducing. The active air inlet grille can improve the air flow when the vehicle runs, especially at high speed, so that the high-end vehicles nowadays are mostly equipped with active air inlet grille.

[0003] The active air inlet grille can control the selective opening or closing of the blades on the air inlet grille. The active air inlet grille can make the engine maintain in a high efficiency interval for a long time by intelligently adjusting the opening and closing state of the grille. When the automobile is at high speed, the active air inlet grille can intelligently select the closed air inlet grille, which can effectively reduce the air resistance in the process of automobile driving, so as to make the vehicle realize better economic fuel efficiency. When the automobile is cold started, the active air inlet grille is closed, which can effectively avoid the convection of cold air, thereby shortening the warm-up time, making the engine quickly enter the best working temperature, and quickly raising the temperature in the vehicle to provide a comfortable environment for the driver and the passenger.

[0004] The active air inlet grille on the market is a multi-blade active air inlet grille. The blades are generally split type, and each blade is injection molded, and then each blade is assembled. When the number of blades of the active air inlet grille is large, the blades are easy to mix during assembly and the assembly rhythm is long.

[0005] Therefore, in order to better improve the overall assembly efficiency of the active air inlet grille, a flexible blade group arrangement scheme needs to be proposed. UTILITY MODEL CONTENTS

[0006] The utility model discloses a flexible blade group for active air inlet grille can realize the integral molding of multiple blades and flexible shaft, avoids the cost rise and technical difficulty caused by mistake proofing and assembly, and can check the blade misassembly problem, realize substation assembly, and improve the overall assembly efficiency of the active air inlet grille.

[0007] The utility model discloses a flexible blade group for active air inlet grille can realize the integral molding of multiple blades and flexible shaft, avoids the cost rise and technical difficulty caused by mistake proofing and assembly, and can check the blade misassembly problem, realize substation assembly, and improve the overall assembly efficiency of the active air inlet grille.

[0008] A flexible blade group for active air inlet grille, comprising a blade and a flexible shaft, a plurality of blades are arranged on the flexible shaft,

[0009] The flexible shaft is composed of first rotating shafts and second rotating shafts, N first rotating shafts and N-1 second rotating shafts are connected in sequence, and each blade is arranged on a first rotating shaft.

[0010] In one embodiment of the utility model, the blade is composed of a blade surface and a connecting piece, one end of the connecting piece is fixed to the bottom end of the blade surface, and the other end of the connecting piece is arranged on the first rotating shaft.

[0011] In one embodiment of the utility model, the blade and the flexible shaft are integrally formed by injection molding, forming a whole structure.

[0012] In one embodiment of the utility model, the injection molding mode is insert injection molding.

[0013] In one embodiment of the utility model, the flexible blade group further comprises a reed, and when the blade and the flexible shaft are preliminarily assembled, the reed is used to fix the position of the blade in the axial direction.

[0014] In one embodiment of the utility model, the cross section of the second rotating shaft is circular, and the radius of the second rotating shaft is 0.5-1.5 mm, preferably 1 mm.

[0015] In one embodiment of the utility model, when the active air inlet grille is a large-curvature shape, the cross section of the first rotating shaft is a circular notch shape, the notch radius of the circular notch first rotating shaft is 1-2 mm, and preferably 1.5 mm.

[0016] In one embodiment of the utility model, when the active air inlet grille is a small-curvature shape, the first rotating shaft is composed of a plug-in shaft and a fixed shaft, one fixed shaft is arranged at each end of the plug-in shaft, and the fixed shaft is connected with the second rotating shaft.

[0017] The connecting piece is movably arranged on the plug-in shaft, and the fixed shaft is used to be connected with the frame.

[0018] In one embodiment of the utility model, the cross section of the plug-in shaft is a circular notch shape, and the notch radius of the circular notch plug-in shaft is 1-2 mm, preferably 1.5 mm.

[0019] In one embodiment of the utility model, the cross section of the fixed shaft is circular, and the radius of the fixed shaft is 1-3 mm, preferably 2 mm.

[0020] Compared with the prior art, the utility model has the beneficial effects as follows:

[0021] The utility model integrates multiple blades and a flexible shaft into one piece by insert injection molding, thereby reducing the number of parts and achieving cost reduction in assembly cycle. Alternatively, the flexible shaft and blades are assembled in advance, and the axial position of the blades is constrained by clamping the reed and the flexible shaft. This assembly method reduces the difficulty of production and improves production efficiency.

[0022] In response to the modeling trends of different curvatures, the utility model provides two flexible shaft design methods. For the case of smaller curvature, the segmented and different cross-section design of the flexible shaft solves the anti-slip problem of the plastic blades and the flexible shaft, the installation problem of the flexible shaft on the frame and the grille, and the adaptability problem of the flexible shaft assembled on the grilles with different modeling trends; for the modeling with larger curvature, the utility model adopts a special-shaped flexible shaft with a uniform cross-section. Such a flexible shaft is easier to process than the former, but the flexibility is reduced and the applicability is not as wide as the former. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the flexible blade assembly used in the active air intake grille of the present invention;

[0024] Figure 2 This is a top view of the flexible blade assembly after insert molding for the active air intake grille in the present invention;

[0025] Figure 3 A top view of the flexible blade assembly reed for the active air intake grille of the present invention after installation;

[0026] Figure 4 A schematic diagram of the partial structure of the flexible blade group used in the active air intake grille of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the flexible shaft in the present utility model;

[0028] Figure 6 This is a partial enlarged view of the flexible shaft in the present utility model;

[0029] Figure 7 This is a cross-sectional view of the connection area between the blade and the flexible shaft in the present invention;

[0030] Figure 8 This is a cross-sectional view of the frame and flexible shaft installation area of ​​the present invention;

[0031] Figure 9 It is a cross-sectional view of the flexible area of ​​the flexible shaft in the present invention;

[0032] Figure 10 It is a uniform circular segment-shaped cross-sectional view of the flexible shaft in the present utility model;

[0033] Figure 11This is a schematic diagram of the orientation of the flexible blade assembly after being installed on the frame in the present invention.

[0034] Explanation of the accompanying figures: 1. Blade, 2. Flexible shaft, 3. Reed, 4. First rotating shaft, 5. Second rotating shaft, 6. Connecting shaft, 7. Fixed shaft, 9. Blade surface, 10. Connecting part, a. Connection area between blade and flexible shaft, b. Installation area between frame and flexible shaft, c. Flexible area, d. Notch radius of the notch-shaped connecting shaft, e. Radius of the fixed shaft, f. Radius of the second rotating shaft. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to 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 specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0036] 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, it does not require further definition or explanation in subsequent drawings.

[0037] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0040] Example 1

[0041] This embodiment provides a flexible blade assembly for an active air intake grille, comprising blades 1 and a flexible shaft 2, wherein the flexible shaft 2 is provided with a plurality of blades 1.

[0042] The flexible shaft 2 is composed of a first rotating shaft 4 and a second rotating shaft 5 , N first rotating shafts 4 and N-1 second rotating shafts 5 are connected in sequence, and each blade 1 is respectively provided on a first rotating shaft 4 .

[0043] In this embodiment, the blade 1 is composed of a blade surface 9 and a connecting member 10 , one end of the connecting member 10 is fixed to the bottom end of the blade surface 9 , and the other end of the connecting member 10 is passed through the first rotating shaft 4 .

[0044] In this embodiment, the cross section of the second rotating shaft 5 is circular, and the radius f of the second rotating shaft 5 is 1 mm.

[0045] In this embodiment, the blade 1 and the flexible shaft 2 are integrally formed by injection molding to form an integral structure.

[0046] In this embodiment, the injection molding method is insert injection molding.

[0047] like Figure 2 As shown, the blade 1 and the flexible shaft 2 are integrally formed by injection molding, and the original single blade 1 is combined into one part by connecting with the flexible shaft 2, which reduces the assembly time and avoids error prevention;

[0048] like Figure 11 As shown, this is a top view of the flexible blade assembly after being assembled on the frame. The movement of the flexible shaft 2 is controlled by the movement of the frame, so the same flexible blade assembly can adapt to different frame trends to achieve high flexibility.

[0049] Example 2

[0050] This embodiment provides a flexible blade assembly for an active air intake grille, comprising blades 1 and a flexible shaft 2, wherein the flexible shaft 2 is provided with a plurality of blades 1.

[0051] The flexible shaft 2 is composed of a first rotating shaft 4 and a second rotating shaft 5 , N first rotating shafts 4 and N-1 second rotating shafts 5 are connected in sequence, and each blade 1 is respectively provided on a first rotating shaft 4 .

[0052] In this embodiment, the blade 1 is composed of a blade surface 9 and a connecting member 10 , one end of the connecting member 10 is fixed to the bottom end of the blade surface 9 , and the other end of the connecting member 10 is passed through the first rotating shaft 4 .

[0053] In this embodiment, the cross section of the second rotating shaft 5 is circular, and the radius f of the second rotating shaft 5 is 1 mm.

[0054] In this embodiment, the flexible blade assembly further includes a reed 3. When the blade 1 and the flexible shaft 2 are pre-assembled, the reed 3 is used to fix the axial position of the blade 1.

[0055] like Figure 3 As shown, in the present invention, the blade 1 and the flexible shaft 2 are assembled in advance, and the blade 1 is positioned axially with the help of the reed 3. During the assembly of the blade 1 to the flexible shaft 2, attention should be paid to error prevention. At the same time, after the assembly is completed, process error prevention can also be used, such as camera error prevention.

[0056] Example 3

[0057] This embodiment provides a flexible blade assembly for an active air intake grille. When the active air intake grille has a large curvature, the cross section of the first rotating shaft 4 is a circular segment, and the notch radius d of the circular segment first rotating shaft 4 is 1.5 mm.

[0058] like Figure 10 As shown, the cross-sectional shape of the flexible shaft 2 corresponding to the large curvature shape is a circular segment, and the notch radius d of the circular segment-shaped flexible shaft 2 is 1.5 mm. The flexible blade group is assembled to the grille with the help of the overall flexibility of the metal shaft. Compared with the former, the flexibility application range of this flexible shaft is relatively small, and can be selected according to different shapes.

[0059] Example 4

[0060] This embodiment provides a flexible blade assembly for an active air intake grille. When the active air intake grille has a small curvature, the first rotating shaft 4 is composed of a plug-in shaft 6 and a fixed shaft 7. The plug-in shaft 6 is provided with a fixed shaft 7 at each end, and the fixed shaft 7 is connected to the second rotating shaft 5.

[0061] The connecting member 10 is movably inserted into the plug-in shaft 6 , and the fixed shaft 7 is used to be connected to the frame.

[0062] In this embodiment, the cross section of the plug-in shaft 6 is in the shape of a circular segment, and the notch radius d of the circular segment-shaped plug-in shaft 6 is 1.5 mm.

[0063] In this embodiment, the cross section of the fixed shaft 7 is circular, and the radius d of the fixed shaft 7 is 2 mm.

[0064] like Figures 7-9 As shown, the flexible shaft 2 with a small curvature shape is divided into multiple cross-sections. The cross-section at the installation area b between the frame and the flexible shaft 2 is circular, and the radius e of the circle is 2 mm; the shape of the connection area a between the blade 1 and the flexible shaft 2 is a circular segment, and the notch radius d of the circular segment-shaped plug-in shaft 6 is 1.5 mm; the flexible area c of the flexible shaft 2 is a circle, and the radius f of the circle is 1 mm. The flexible area c can be bent according to needs, thereby realizing the adaptability of the flexible blade group and the surrounding parts.

[0065] The above are preferred embodiments of the present patent, and are not intended to limit the protection scope of the present patent. Other embodiments of the present patent, which are implemented by changing the present patent to integrally injection mold multiple blades and a rotating shaft, are also considered to be within the technical scope of the present patent. For example, the flexible shaft shape and size can be changed, the blade shape, size, or arrangement can be changed, the flexible shaft material can be changed, the flexible shaft can be made of the same material as the blade (i.e., not insert injection molding, but ordinary injection molding), the flexible shaft and the blade can no longer be integrally formed, but can be combined together by assembly, and other parts that can achieve the same effect.

[0066] The above description of the embodiments is to facilitate the understanding and use of the utility model by those of ordinary skill in the art. Those skilled in the art can easily make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative labor. 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 protection scope of the utility model.

Claims

1. A flexible blade set for an active grille shutter, characterized by, It comprises blades (1) and flexible shafts (2), and a plurality of blades (1) are arranged on the flexible shafts (2), The flexible shafts (2) are composed of first rotating shafts (4) and second rotating shafts (5), N first rotating shafts (4) and N-1 second rotating shafts (5) are connected in sequence, and each blade (1) is arranged on a first rotating shaft (4) respectively.

2. The flexible blade set for an active grille shutter according to claim 1, wherein The blade (1) is composed of a blade surface (9) and a connecting piece (10), one end of the connecting piece (10) is fixed to the bottom end of the blade surface (9), and the other end of the connecting piece (10) is arranged on the first rotating shaft (4).

3. The flexible blade set for an active grille shutter according to claim 1, wherein The blade (1) and the flexible shaft (2) are integrally formed by injection molding, and form a whole structure.

4. The flexible blade set for an active grille shutter according to claim 3, wherein The injection molding mode is insert injection molding.

5. The flexible blade set for an active grille shutter according to claim 1, wherein The flexible blade group further comprises a spring piece (3), which is used for fixing the position of the blade (1) in the axial direction when the blade (1) and the flexible shaft (2) are preliminarily assembled.

6. The flexible blade pack for an active grille shutter according to claim 1, wherein, The cross section of the second rotating shaft (5) is circular, and the radius (f) of the second rotating shaft (5) is 0.5-1.5 mm.

7. The flexible blade pack for an active grille shutter according to claim 1, wherein, When the active air intake grille is a large curvature shape, the cross section of the first rotating shaft (4) is a circular notch shape, and the notch radius (d) of the circular notch first rotating shaft (4) is 1-2 mm.

8. The flexible blade set for an active grille shutter according to claim 2, wherein When the active air intake grille is a small curvature shape, the first rotating shaft (4) is composed of a plug-in shaft (6) and a fixed shaft (7), and the plug-in shaft (6) is provided with a fixed shaft (7) at both ends respectively, and the fixed shaft (7) is connected with the second rotating shaft (5). The connecting piece (10) is movably arranged on the plug-in shaft (6), and the fixed shaft (7) is used for being connected with the frame.

9. The flexible blade set for an active grille shutter according to claim 8, wherein The cross section of the plug-in shaft (6) is a circular notch shape, and the notch radius (d) of the circular notch plug-in shaft (6) is 1-2 mm.

10. The flexible blade set for an active grille shutter according to claim 8, wherein The cross section of the fixed shaft (7) is circular, and the radius (d) of the fixed shaft (7) is 1-3 mm.

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