Air intake grille with flexible vane assembly and air intake grille
The blade assembly driven by a flexible spindle and drive mechanism enables multi-angle rotation of the air intake grille blades, solving the need for appearance changes and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ROECHLING AUTOMOTIVE PARTS KUNSHAN
- Filing Date
- 2022-08-19
- Publication Date
- 2026-06-09
AI Technical Summary
Existing automotive air intake grille blades cannot flexibly rotate at different angles, failing to meet consumers' diverse needs for appearance changes, and the installation cost is relatively high.
The system employs a flexible main shaft and drive mechanism. The flexible main shaft is fixedly connected to the blades, and combined with the drive rod and connecting rod, the blades can be flipped at different angles. The flipping is assisted by a torsion spring. The blade assembly is an integrated sheet-like structure that is installed on the outer frame of the grid.
This allows for diverse appearance variations of the air intake grille blades, reducing production costs and installation difficulty.
Smart Images

Figure CN115352273B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of automotive parts technology, specifically relating to a flexible blade assembly for an air intake grille and an air intake grille. Background Technology
[0002] The car's grille, located at the front of the vehicle, primarily functions to provide air intake and cooling for the engine. Active grille systems are typically driven by an electric motor. The vehicle's ECU (Electronic Control Unit) determines the opening and closing of the grille blades based on engine temperature and other factors, adapting to different needs. However, existing grilles usually consist of multiple long, single-blade strips arranged in an array, each driven by a motor to open or close simultaneously at the same angle. As people's pursuit of aesthetics increases, and they pay more attention to changes in vehicle appearance, how to achieve more variations in the grille to meet consumer demands has become a crucial issue to consider. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention proposes a flexible blade assembly for an air intake grille and an air intake grille to achieve angle flipping between different blades.
[0004] The objective of this invention is achieved through the following technical solution:
[0005] A flexible blade assembly for an air intake grille includes at least one flexible main shaft and one or more blades passing through the flexible main shaft. The diameter of the flexible main shaft is 2-8 mm. One end of the blade is fixedly connected to the flexible main shaft.
[0006] Preferably, the component further includes a drive mechanism, which is connected to the blades or flexible spindle via a drive rod. When the drive mechanism operates, it drives different blades to rotate at different angles.
[0007] Preferably, the driving mechanism is a drive motor, which is located in the middle of the blade assembly.
[0008] Preferably, a connecting rod is provided between adjacent blades, and the drive rod is connected to the connecting rod.
[0009] Preferably, the flexible spindle is a metal flexible spindle, and the flexible spindle and the blade are integrally injection molded as metal inserts.
[0010] Preferably, the blades are evenly placed on the flexible spindle.
[0011] Preferably, the blade assembly is an integrated sheet-like structure, and there are two or more flexible main shafts arranged in parallel with adjacent flexible main shafts. When closed, the blades on adjacent flexible main shafts are arranged in a complementary manner.
[0012] Preferably, a torsion spring is provided on the flexible spindle, the central rotating part of the torsion spring is located in the middle of the blade, and one end of the torsion spring is fixedly connected to the blade.
[0013] Preferably, an air intake grille having any one of the above-described flexible blade assemblies for an air intake grille includes an outer frame of the grille and a blade assembly disposed within the outer frame, wherein the blade assembly is fixed to the outer frame of the grille by means of both ends of a flexible main shaft.
[0014] The beneficial effects of this invention are as follows: the blades of this invention can open gradually at different angles, allowing the air intake grille using these blades to have a more varied appearance, thus meeting the diverse needs of air intake grilles and adapting to consumer demands. Furthermore, compared to existing blade forming methods, the forming method of the blade assembly of this invention can more effectively reduce costs. Attached Figure Description
[0015] Figure 1 : Schematic diagram of the blade assembly structure of the present invention.
[0016] Figure 2 : Schematic diagram of the connection structure between the torsion spring and the blade of the present invention.
[0017] Among them, 1 is a flexible main shaft, 2 is a blade, 3 is a drive mechanism, 4 is a first drive rod, 5 is a second drive rod, 6 is a third drive rod, 61 is a connecting rod, 7 is a central rotating part, 71 is a torsion spring first end, and 72 is a torsion spring second end. Detailed Implementation
[0018] This invention discloses a flexible blade assembly for an air intake grille, combined with Figure 1 As shown, the device includes a flexible spindle 1 and one or more blades 2 passing through the flexible spindle 1. Typically, the blades 2 are evenly distributed on the flexible spindle 1. In this embodiment, the flexible spindle 1 is a metal flexible spindle, and the shape of the blades 2 can be triangular, semi-circular, or other forms, which are not limited here. The flexible spindle 1 and the blades 2 are integrally injection molded as metal inserts.
[0019] Specifically, the upper end of the blade 2 is fixedly connected to the flexible spindle 1. In this invention, the flexible spindle 1 refers to a non-rigid metal component, typically with a diameter of 2-8 mm. Metal shafts with this diameter have a certain curvature, so that when one end is bent by force, the other end will gradually bend. The specific curvature is not limited here.
[0020] The component also includes at least one drive mechanism 3, which is a motor. The drive mechanism 3 is connected to the blades or flexible main shaft 1 via drive rods. When the drive mechanism 3 operates, it drives different blades to rotate at different angles. A connecting rod 61 is provided between adjacent blades 2. The connecting rod 61 is only one embodiment of the present invention and may not be provided. In this embodiment, the drive rods include a first drive rod 4, a second drive rod 5, and a third drive rod 6. The three drive rods are connected end-to-end. The first drive rod 4 is connected to the motor shaft of the drive mechanism 3, and one end of the third drive rod 6 operates with the drive mechanism 3. The three drive rods are driven sequentially, and the third drive rod 6 drives the blades to rotate. Since the blades are fixedly connected to the flexible main shaft 1, adjacent blades are connected to each other, and the flexible main shaft 1 has a certain curvature, when a force is applied at a certain point, the angle will gradually change from near to far from the point of force application, thereby achieving a sequential rotation of different blades at different angles. Of course, the present invention can also achieve simultaneous rotation of blades, that is, by adding drive mechanisms at different positions.
[0021] The blade assembly described in this invention is an integrated sheet-like structure. Two or more flexible main shafts 1 are provided, arranged parallel to each other. In the closed state, the blades 2 on adjacent flexible main shafts 1 are arranged complementaryly. The drive rod of the drive mechanism is connected to each flexible main shaft or each blade on each flexible main shaft. The closed state here refers to the state where the complementary blades are closed when the blades are not flipped. When the drive mechanism 3 operates, it drives the blades on each flexible main shaft to flip, thus opening the assembly.
[0022] As another embodiment, combined with Figure 2 As shown, the angle change of the blade 2 can also be assisted by a torsion spring provided on the flexible main shaft 1. The central rotating part 7 of the torsion spring is provided in the middle of the blade 2. The first end 71 of the torsion spring is fixedly connected to the blade 2, and the second end 72 of the torsion spring can be fixed to a blade on another flexible main shaft or fixed to other auxiliary rods.
[0023] Based on the aforementioned blade assembly, this invention also discloses an air intake grille having the aforementioned adjustable air intake grille blade assembly, comprising a grille outer frame and a blade assembly disposed within the outer frame. The blade assembly employs the aforementioned integrated blade, integrally mounted on the grille outer frame and fixed to the grille outer frame by both ends of a flexible main shaft 1. The grille outer frame has the same structure as existing automotive grille outer frames and will not be described further here. The integrated blade is more convenient and faster to install than the single-blade installation in the prior art, and also has lower manufacturing costs.
[0024] Finally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] Furthermore, the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such 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. A flexible blade assembly for an air intake grille, characterized in that: The assembly includes at least one flexible spindle (1) and one or more blades (2) passing through the flexible spindle (1). The diameter of the flexible spindle (1) is 2-8 mm. One end of the blade (2) is fixedly connected to the flexible spindle (1). The assembly also includes a drive mechanism (3). The drive mechanism (3) is connected to the blade or the flexible spindle (1) through a drive rod (4). When the drive mechanism (3) works, it drives different blades to rotate at different angles. The flexible spindle (1) is a metal flexible spindle. The flexible spindle (1) and the blade (2) are integrally molded by metal insert injection molding. A torsion spring is provided on the flexible spindle (1). The central rotating part (7) of the torsion spring is located in the middle of the blade (2). One end of the torsion spring is fixedly connected to the blade.
2. The flexible blade assembly for the air intake grille as described in claim 1, characterized in that: The drive mechanism (3) is a drive motor, which is located in the middle of the blade assembly.
3. The flexible blade assembly for the air intake grille as described in claim 1, characterized in that: A connecting rod (61) is provided between adjacent blades (2), and the drive rod is connected to the connecting rod (61).
4. The flexible blade assembly for an air intake grille as described in claim 1, characterized in that: The blades (2) are evenly placed on the flexible main shaft (1).
5. The flexible blade assembly for an air intake grille as described in claim 1, characterized in that: The blade assembly is an integrated sheet-like structure. The flexible main shaft (1) has two or more blades, which are arranged in parallel with each other. When closed, the blades on the adjacent flexible main shafts (1) are arranged in a complementary manner.
6. An air intake grille having a flexible blade assembly for an air intake grille as described in any one of claims 1-5, characterized in that: It includes a grid frame and a blade assembly disposed within the frame. The blade assembly is fixed to the grid frame by both ends of a flexible main shaft (1).