A translational active diffuser for automobile

Abstract

The present invention provides a translational active diffuser for automobiles, which is installed at the rear of a vehicle and comprises: a diffuser bracket fixed relative to the vehicle body, a motor fixed to the diffuser bracket, a gear driven by the motor, and a diffuser inner plate, wherein the diffuser inner plate has a rack meshing with the gear; wherein, driven by the motor, the diffuser inner plate performs translational motion relative to the diffuser bracket along the length direction of the vehicle body to form an air flow channel for air to flow through between the two. A translational active diffuser for automobiles provided by the present invention adopts a structure driven by a motor and meshing gears and racks to achieve translational motion of the diffuser inner plate relative to the diffuser bracket. When the vehicle speed is high, it can be opened manually or automatically to improve the aerodynamic performance of the entire vehicle, thereby reducing fuel consumption and CO. 2 The emissions are controlled to meet the emission regulations, while ensuring the smoothness of the bottom of the vehicle when not in operation, combining practicality with aesthetics.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and more particularly to a translational active diffuser for automobiles. Background Art

[0002] The current environmental pollution problem is becoming more and more serious, and national policies are becoming more and more stringent on the environment, requiring cars to reduce CO2 emissions. As consumers' car use costs increase, they are also eager to reduce car fuel consumption.

[0003] In order to improve the aerodynamic performance of the whole vehicle, increase the air flow efficiency under the car, and meet the requirements of emission regulations, the main measures currently adopted are: reducing the weight of the whole vehicle, reducing rolling resistance, and using electric vehicles. However, these measures will more or less bring some adverse consequences. Among them, the problem of reducing the weight of the whole vehicle is that the stability of the whole vehicle is not enough and the safety of the car is reduced; the problem of reducing rolling resistance is that the cost of tires increases; although electric vehicles solve the problem of environmental pollution, due to the immature technology, the range is limited. Summary of the invention

[0004] The purpose of the present invention is to provide a translational active diffuser for automobiles, so as to solve the environmental pollution problems caused by large amounts of CO2 emitted by automobiles and the problem of excessive fuel consumption of automobiles in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] Provided is a translational active diffuser for an automobile, which is installed at the rear of a vehicle and comprises: a diffuser bracket fixed relative to a vehicle body, a motor fixed to the diffuser bracket, a gear driven by the motor, and a diffuser inner plate, wherein the diffuser inner plate has a rack meshing with the gear; wherein, driven by the motor, the diffuser inner plate performs translational movement relative to the diffuser bracket along the length direction of the vehicle body, so as to form an airflow channel for air to flow through between the diffuser inner plate and the diffuser bracket.

[0007] Preferably, it also includes a guide rail assembly disposed between the diffuser bracket and the diffuser inner plate to provide guidance for the translational movement.

[0008] Preferably, the guide rail assembly comprises: a plurality of upper guide rail brackets connected to the diffuser bracket, and a plurality of lower guide rail brackets connected to the diffuser inner plate.

[0009] Preferably, the guide rail upper bracket is formed as a first C-shaped structure having a C-shaped cross-sectional shape, and the guide rail lower bracket is formed as a second C-shaped structure embedded in the first C-shaped structure and capable of sliding along the first C-shaped structure.

[0010] Preferably, the matching surfaces of the first C-shaped structure and the second C-shaped structure also have rib structures.

[0011] Preferably, the diffuser bracket has a slot structure, and the diffuser inner plate has a convex piece structure embedded in the slot structure and capable of sliding along the slot structure.

[0012] Preferably, the slot structures are arranged in pairs on the diffuser bracket, and the lug structures are symmetrically arranged on the diffuser inner plate.

[0013] Preferably, it further comprises a T-shaped plate installed on the inner plate of the diffuser, the diffuser bracket has a limiting hole matched with the T-shaped plate, and the extending direction of the limiting hole is consistent with the direction of the translational movement.

[0014] Preferably, it also includes a fender mounted on the diffuser inner panel to achieve synchronous movement of the fender and the diffuser inner panel.

[0015] Preferably, it also includes a motor cover plate for mounting the motor on the diffuser bracket.

[0016] According to the present invention, a translational active diffuser for automobiles is provided, which is driven by a motor and has a structure in which gear racks are meshed, thereby realizing translational movement of the diffuser inner plate relative to the diffuser bracket along the length direction of the vehicle body. When the vehicle speed is high, it is opened manually or automatically to form an air flow channel for air to flow through between the diffuser inner plate and the diffuser bracket, thereby improving the aerodynamic performance of the entire vehicle, reducing fuel consumption and reducing CO2 emissions to meet emission regulations. At the same time, the smoothness of the bottom of the vehicle when not in operation is ensured, and it has both practical and aesthetic functions. It also avoids the safety hazards caused by the existing technology of energy saving and emission reduction through vehicle body weight reduction, thereby ensuring the driving safety of the vehicle.

[0017] In summary, the present invention provides a translational active diffuser for automobiles which improves the aerodynamic performance of the entire vehicle, ensures driving safety, reduces fuel consumption and reduces CO2 emissions, and has both practical and aesthetic functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation position of a translational active diffuser for an automobile provided in accordance with a preferred embodiment of the present invention on an automobile;

[0019] Figure 2 This is a partial exploded schematic diagram of the active diffuser of the translational vehicle;

[0020] Figure 3 Yes Figure 2 A fully exploded schematic of a translating automotive active diffuser is shown;

[0021] Figure 4 is a top view of the translational automotive active diffuser;

[0022] Figure 4A is along Figure 4 The sectional view shown by the section line AA in FIG.

[0023] Figure 4B is along Figure 4 The sectional view shown by the section line BB in FIG.

[0024] Figure 5 It is a schematic diagram of the assembly of the upper bracket and the lower bracket of the guide rail;

[0025] Figure 5A is along Figure 5 The cross-sectional view shown by the section line MM in;

[0026] Figure 6 is a top view of the translational automotive active diffuser;

[0027] Fig. 6A is along Figure 6 The sectional view shown by the section line NN in FIG.

[0028] Fig. 7A This is the front view of the translational active diffuser of the automobile;

[0029] Figure 7B This is a top view of the translational automotive active diffuser. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with specific examples. It should be understood that the following examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0031] like Figure 1 As shown, a translational active diffuser 100 for an automobile is provided according to a preferred embodiment of the present invention, which is installed at the rear of an automobile 200, and can not only optimize the aerodynamic performance of the entire vehicle when the automobile is driving at high speed, but also ensure the smoothness of the bottom of the entire vehicle when it is not in operation.

[0032] Combination Figure 2 , Figure 3As shown, the translational automobile active diffuser 100 mainly includes: a diffuser bracket 1, a motor 2, a motor cover 3, a gear 4, a guide rail upper bracket 5, a guide rail lower bracket 6, a diffuser inner plate 7, a diffuser outer plate 8, a T-plate 9, and a fender 10. Among them, the diffuser bracket 1 is fixed relative to the body of the automobile 200, the motor 2 is installed on the diffuser bracket 1 through the motor cover 3, the gear 4 is drivingly connected to the motor 2, the guide rail upper bracket 5 is installed on the diffuser bracket 1, the guide rail lower bracket 6 is installed on the diffuser inner plate 7, and the diffuser inner plate 7 is connected to the diffuser bracket 1, and the diffuser outer plate 8 is installed on the outer side of the diffuser inner plate 7.

[0033] Specifically, Figure 4 , Figure 4A , Figure 4B As shown, the motor 2 and the gear 4 are installed on the diffuser bracket 1 and fastened by the motor cover 3 to protect the motor. The diffuser inner plate 7 is provided with a rack 71 meshing with the gear 4. Therefore, under the drive of the motor 2, when the gear 4 rotates counterclockwise, the rack 71 is driven to retreat accordingly, so that the diffuser inner plate 7 can be translated and opened relative to the diffuser bracket 1 toward the rear end of the vehicle to form an air flow channel for air to flow between the diffuser inner plate 7 and the diffuser bracket 1; on the contrary, when the gear 4 rotates clockwise, the rack 71 is driven forward accordingly, so that the diffuser inner plate 7 can be translated and closed relative to the diffuser bracket 1 toward the front end of the vehicle, thereby closing the air flow channel between the diffuser inner plate 7 and the diffuser bracket 1.

[0034] According to a preferred embodiment of the present invention, the driving of the motor 2 includes two modes: one is to make the motor work by manually controlling the input signal; the other is to automatically turn on when the speed sensor detects that the vehicle speed exceeds a certain value (such as 120KPH), and automatically turn off when it is lower than the speed.

[0035] Combination Figure 2 , Figure 3 , Figure 5 , Figure 5A As shown, according to the preferred embodiment, the method of nesting and matching of upper and lower rails is adopted to realize the translational movement of the diffuser inner plate 7. Specifically, four upper rail brackets 5 are installed on the diffuser bracket 1, and four lower rail brackets 6 are installed on the diffuser inner plate 7. The upper rail bracket 5 is formed into a first C-shaped structure with a C-shaped cross-sectional shape, and the lower rail bracket 6 is formed into a second C-shaped structure embedded in the first C-shaped structure and capable of sliding along it. The active diffuser 100 realizes the translational movement of the diffuser inner plate 7 relative to the diffuser bracket 1 through the cooperation of the first C-shaped structure and the second C-shaped structure. However, it should be understood that the number of the upper rail bracket and the lower rail bracket can be adjusted accordingly according to the specific situation, and is not limited to what is shown in the figure.

[0036] According to the preferred embodiment, Figure 5A As shown, the first C-shaped structure includes a first upper wall 511 and a first lower wall 512 extending in parallel, and a first side wall 513 connecting the first upper wall 511 and the first lower wall 512; the second C-shaped structure includes a second upper wall 611 and a second lower wall 612 extending in parallel, and a second side wall 613 connecting the second upper wall 611 and the second lower wall 612. Preferably, the second upper wall 611 and the second lower wall 612 also have a rib structure 62 on the surface matching the first C-shaped structure to reduce the friction of relative movement.

[0037] Combination Figure 6 As shown in 6A, according to this preferred embodiment, the diffuser bracket 1 also has a slot structure 11, and the diffuser inner plate 7 has a convex structure 72 embedded in the slot structure 11 and capable of sliding along the slot structure 11. Fig. 6A As shown, the slot structures 11 are arranged in pairs on the diffuser bracket 1 , and the convex piece structures 72 are also symmetrically arranged on the diffuser inner plate 7 , further effectively ensuring the interaction between the diffuser inner plate 7 and the diffuser bracket 1 , so that the gear 4 and the rack 71 are effectively meshed.

[0038] Combination Fig. 7A , Figure 7B As shown, according to the preferred embodiment, the T-plate 9 is mounted on the top of the diffuser inner plate 7 by means of screws 91, and extends from a limiting hole 12 on the diffuser bracket 1, and the limiting hole 12 extends along the length direction of the vehicle body, that is, the movement direction of the diffuser inner plate 7. When the diffuser inner plate 7 translates along the length direction of the vehicle body, the T-plate 9 slides in the limiting hole 12. It should be understood that the T-plate 9 can ensure that the external wind load of the vehicle is under extreme conditions, and avoid the damage of the diffuser due to excessive deformation.

[0039] According to the preferred embodiment, the mud guard 10 is connected to the diffuser inner panel 7 to achieve synchronous movement with the diffuser inner panel 7, thereby ensuring that when the diffuser is in the open state, mud and sand are prevented from entering the diffuser to cause equipment failure.

[0040] According to a preferred embodiment of the present invention, it is verified by CAE (Computer Aided Engineering) that the active diffuser can better optimize the aerodynamic performance under the condition that the diffuser inner panel is translated by 30 mm.

[0041] In summary, the translational active diffuser 100 for automobiles provided in accordance with the above preferred embodiment improves the aerodynamic performance of the entire vehicle at high speeds, reduces fuel consumption and reduces CO2 emissions, meets emission regulations, has both practical and aesthetic functions, and avoids the potential safety hazards caused by the prior art of energy conservation and emission reduction by reducing the weight of the vehicle body.

[0042] The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The above embodiments of the present invention can also be modified in various ways. All simple, equivalent changes and modifications made according to the claims and the description of the present invention fall within the scope of protection of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A translational active diffuser for automobiles, installed at the rear of a vehicle, characterized in that: include: A diffuser bracket fixed relative to the vehicle body, a motor fixed to the diffuser bracket, a gear driven by the motor, and a diffuser inner plate, wherein the diffuser inner plate has a rack meshing with the gear; wherein, under the drive of the motor, the diffuser inner plate performs translational movement relative to the diffuser bracket along the length direction of the vehicle body to form an air flow channel for air to flow through between the diffuser inner plate and the diffuser bracket; Also included is a guide rail assembly provided between the diffuser bracket and the diffuser inner plate to provide a guide for the translational movement; the guide rail assembly includes: a plurality of upper guide rail brackets connected to the diffuser bracket, and a plurality of lower guide rail brackets connected to the diffuser inner plate; the upper guide rail bracket is formed as a first C-shaped structure having a C-shaped cross-sectional shape, and the lower guide rail bracket is formed as a second C-shaped structure embedded in the first C-shaped structure and capable of sliding along the first C-shaped structure; It also includes a T-shaped plate installed on the diffuser inner plate, and the diffuser bracket has a limiting hole that matches the T-shaped plate, and the extending direction of the limiting hole is consistent with the direction of the translation movement.

2. The translational active diffuser for automobiles according to claim 1, characterized in that: The matching surfaces of the first C-shaped structure and the second C-shaped structure also have rib structures.

3. The translational active diffuser for automobile according to claim 1, characterized in that: The diffuser bracket is provided with a slot structure, and the diffuser inner plate is provided with a convex piece structure which is embedded in the slot structure and can slide along the slot structure.

4. The translational active diffuser for automobile according to claim 3, characterized in that: The slot structures are arranged in pairs on the diffuser bracket, and the lug structures are symmetrically arranged on the diffuser inner plate.

5. The translational active diffuser for automobile according to claim 1, characterized in that: It also includes a fender mounted on the diffuser inner plate to achieve synchronous movement of the fender and the diffuser inner plate.

6. The translational active diffuser for automobile according to claim 1, characterized in that: Also included is a motor cover for mounting the motor on the diffuser bracket.

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