Aerodynamic devices and motor vehicles

Abstract

The invention provides a motor vehicle (10) having an interior cabin (13) at least partially surrounded by windows (11, 17, 18). According to the invention, at least one windshield (17) or one side window (18) or one rear window (11) is assigned an aerodynamic device (16) designed to generate turbulence at the surface of the window (11, 17, 18) facing the interior cabin (13) when an air flow (19) impinges on the aerodynamic device (16). The invention also provides an aerodynamic device (16).

Description

Technical Field

[0001] The invention relates to an aerodynamic device and to a motor vehicle having such an aerodynamic device, the motor vehicle having an interior passenger compartment at least partially surrounded by windows. Background Art

[0002] US 6,394,890 B1 discloses a deicing guide formed by an elongated flexible channel arranged on the inside of a windshield near the upper edge. The channel is an inverted U-shaped profile with an outer wall, an upper wall and an inner wall. The outer wall comprises an adhesive surface with a peelable cover which is peeled off immediately before application to the windshield. The channel consists of a flexible material such as, in particular, neoprene, polyurethane or rubber which can be bent and stretched and in the process retains its U-shape. Summary of the invention

[0003] The object of the present invention is to provide a motor vehicle having an improved device for blowing air into the windows.

[0004] This object is achieved by a motor vehicle as claimed in claim 1 and by means of an aerodynamic device as claimed in claim 11. The dependent claims define advantageous developments of the invention.

[0005] The motor vehicle according to the invention has an interior cabin which is at least partially enclosed by windows, wherein, according to the invention, at least one windshield or one side window or one rear window is equipped with an aerodynamic device which is designed to generate turbulence on the surface of the window facing the interior cabin when the air flow impinges on the aerodynamic device.

[0006] The aerodynamic device generates small vortices in the boundary layer relative to the window. As a result, the window can be defogged faster and the view through the window can be improved as a result. Rapid defog or defog of the window provides greater safety and comfort for the passengers.

[0007] In an advantageous embodiment of the motor vehicle according to the invention, the window is a rear window.

[0008] The rear window in particular remains fogged for the longest time in conventional motor vehicles. The advantages of the aerodynamic device are therefore maximized at the rear window.

[0009] In an alternative advantageous embodiment of the motor vehicle according to the invention, the window is a side window or a windshield.

[0010] As a result, demisting and a clear view can be achieved faster on other windows as well.

[0011] In a further advantageous embodiment of the motor vehicle according to the invention, the aerodynamic device is arranged on a surface of the window facing the interior passenger compartment.

[0012] This arrangement is advantageous especially for retrofit solutions, since the aerodynamic device can be easily attached to the window.

[0013] In a further advantageous embodiment of the motor vehicle according to the invention, the aerodynamic device is not in contact with the window.

[0014] The aerodynamic device can thus be arranged in the interior cabin in an unobtrusive and more aesthetically appealing manner than is the case with adhesive-bonded variants.

[0015] In a further advantageous embodiment of the motor vehicle according to the invention, the aerodynamic device is transparent.

[0016] Thus, in particular in the adhesive bonded variant, sight through the aerodynamic device is ensured and the field of vision is not impaired. In the transparent or translucent design, the aerodynamic device can in some cases be designed to be larger and therefore more effective, but without obstructing the field of vision.

[0017] In a further advantageous embodiment of the motor vehicle according to the invention, the window has a heating wire.

[0018] The effect of the aerodynamic device is thus further assisted.

[0019] In a further advantageous embodiment of the motor vehicle according to the invention, it comprises at least one vent which is arranged in the interior passenger compartment and is designed to generate an air flow in the direction of the at least one aerodynamic device.

[0020] Thus, the impact of the airflow on the aerodynamic device can be achieved in a more targeted manner.

[0021] In a further advantageous embodiment of the motor vehicle according to the invention, the motor vehicle is a passenger car.

[0022] Particularly the rear windows of passenger cars are subject to fogging problems. The provision of at least one aerodynamic device can solve this problem.

[0023] The aerodynamic device according to the invention is designed for an interior passenger compartment of a motor vehicle at least partially surrounded by windows. Here, the aerodynamic device is designed to generate turbulence downstream of the aerodynamic device when the air flow impinges on the aerodynamic device.

[0024] Thus, a device is provided which can be used in a motor vehicle and which facilitates faster defogging of windows assigned to an aerodynamic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other advantages of the present invention will be apparent from the more detailed description and the accompanying drawings. The present invention will be discussed in more detail based on the accompanying drawings and the following description. In the accompanying drawings:

[0026] Figure 1 A motor vehicle according to an exemplary embodiment of the invention is shown;

[0027] Figure 2 An interior passenger compartment of a motor vehicle is shown in an exemplary embodiment; and

[0028] Figure 3 An aerodynamic device according to an exemplary embodiment of the invention is shown. DETAILED DESCRIPTION

[0029] Figure 1 and Figure 2 An exemplary embodiment of a motor vehicle 10 according to the invention is shown in different views. Figure 1 The rear side view shows an exemplary motor vehicle 10 from the outside, and Figure 2 An exemplary motor vehicle 10 is shown in cross-section. The motor vehicle 10 is in particular in the form of a passenger car (combined vehicle). Figure 1 and Figure 2 The motor vehicle 10 may alternatively be in the form of a station wagon, a fastback, a hatchback, or a convertible. In the exemplary embodiment, the motor vehicle 10 has at least one side door 26 and a tailgate 27 .

[0030] As is conventional, the motor vehicle 10 has a front portion 24 and a rear portion 25. During forward travel, the motor vehicle 10 moves in the direction of the front portion 24.

[0031] It is also conventional that the motor vehicle 10 has an interior passenger compartment 13 for accommodating at least one passenger, who may also be the driver of the motor vehicle 10. The interior passenger compartment 13 is formed in the exemplary embodiment as Figure 2 The cross-sectional view is schematically shown.

[0032] The interior passenger compartment 13 is at least partially surrounded by windows 11, 17, 18. Thus, the motor vehicle 10 has a windshield 17, at least one side window 18 and a rear window 11. The at least one side window 18 is in particular arranged in at least one door 26. The rear window 11 can be arranged in a tailgate 27 or on the outside of the tailgate 27.

[0033] Furthermore, the motor vehicle 10 has a roof 12 which may also be of tiltable and / or foldable design.

[0034] The motor vehicle 10 has at least one A-pillar 20 and can also have a B-pillar 21 and / or a C-pillar 22. In the exemplary embodiment as a passenger car, the motor vehicle 10 therefore has an A-pillar 20, a B-pillar 21 and a C-pillar 22, wherein the side window 18 is arranged in the C-pillar 22.

[0035] The motor vehicle 10 according to the invention comprises at least one aerodynamic device 16 according to the invention, which is assigned to the windshield 17 and / or to at least one side window 18 and / or to the rear window 11. Preferably, at least one aerodynamic device 16 is assigned to each of the windows 11, 17, 18. At least one of the windows 11, 17, 18 can also be equipped with a plurality of aerodynamic devices 16, in particular arranged in a row. The windshield 17 or the side window 18 or the rear window 11, each equipped with at least one aerodynamic device 16, in particular comprises a heating wire. In an exemplary embodiment, in the Figure 3 The aerodynamic device 16 according to the invention is schematically shown in a functional diagram of FIG.

[0036] The aerodynamic device 16 is designed to generate turbulence 30 downstream of the aerodynamic device 16 when the airflow impinges on the aerodynamic device 16 (that is to say when the airflow 19 hits the aerodynamic device 16). The aerodynamic device 16 is a turbulator or a vortex generator. In particular, the aerodynamic device 16 is designed to generate turbulence 30 containing vortices (in particular small vortices). The aerodynamic device 16 is designed so that the turbulence 30 is generated at the surface of the windows 11, 17, 18 facing the interior cabin 13, in particular in the aerodynamic boundary layer at the surface of the windows 11, 17, 18.

[0037] For this purpose, the aerodynamic device 16 comprises in particular an inflow region 28, which is designed for the air flow 19 to be incident thereon. In this case, the air flow 19 can be in particular a laminar flow or a turbulent flow. Furthermore, the aerodynamic device 16 comprises in particular an outflow region 29, which is designed to generate turbulence 30 downstream of the outflow region 29.

[0038] The aerodynamic device has the shape of, for example, at least one pyramid. In this case, the pyramid preferably has a square base surface and a height corresponding approximately to half the length of one side of the base surface. This form has proven to be particularly advantageous in terms of effect, production and aesthetics. In particular, the side surface of the pyramid is 12 mm and the height is 7 mm.

[0039] In order to cause the above-mentioned turbulence 30 to occur on the surface of the window 11, 17, 18 to which the aerodynamic device 16 is assigned, which faces the interior cabin 13 of the motor vehicle 10, the aerodynamic device 16 is arranged upstream in at least one region of the window 11, 17, 18. Possible locations for arranging at least one aerodynamic device 16 in the interior cabin 13 are Figure 2 Thus, at least one aerodynamic device 16 is as follows Figure 2 As shown by the dotted line in .

[0040] The aerodynamic device 16 can be arranged on the surface of the side window 18 or the windshield 17 or the rear window 11 in the motor vehicle 10, which surface faces the interior passenger compartment 13. In particular, the aerodynamic device 16 is in this case in a transparent (in particular translucent) form. Here, the aerodynamic device 16 is in particular attached (in particular bonded) to the front area of ​​the window 11, 17, 18. The front area of ​​the window 11, 17, 18 is defined here as being closer to the front 24 of the motor vehicle 10 than the rear area of ​​the window 11, 17, 18.

[0041] exist Figure 2 , positions 16.2, 16.5, 16.8, 16.10 and 16.11 show the positions where the aerodynamic device 16 is mounted on the windows 11, 17, 18, respectively. Here, the aerodynamic device 16 is attached to the front side window 18 at position 16.2. In position 16.5, the aerodynamic device 16 is attached to the rear side window 18. In position 16.8, the aerodynamic device 16 is attached to the rear window 11. In position 16.10, the aerodynamic device 16 is attached to the rear side window 18 set in the C-pillar 22. In position 16.11, the aerodynamic device 16 is attached to the windshield 17. Here, position 16.2 is close to the A-pillar 20. Position 16.5 is close to the B-pillar 21, and position 16.10 is located at the C-pillar.

[0042] As an alternative to an arrangement on a window 11, 17, 18, the aerodynamic device 16 can be arranged in the motor vehicle close to the windshield 17 or the side windows 18 or the rear window 11, in particular so that the aerodynamic device 16 does not come into contact with the respective window 11, 17, 18. Here, at least one aerodynamic device 16 is preferably arranged on a paneling component or integrated into a paneling component.

[0043] If at least one aerodynamic device 16 is assigned to the windshield 17, the paneling component is in particular the instrument panel 32. Figure 2 It is shown at position 16.12.

[0044] If at least one aerodynamic device 16 is assigned to the rear window 11, the paneling part is in particular the roof lining 14. Figure 2 7. Alternatively, if the aerodynamic device 16 is assigned to the rear window 11, the paneling part is in particular a brake light. Here, the aerodynamic device 16 is in particular arranged in front of the rear window 11 in the direction of the rear 25 of the motor vehicle 10.

[0045] If at least one aerodynamic device 16 is assigned to at least one side window 18, the paneling part is in particular a side paneling part 23. Figure 2 The aerodynamic device 16 is hereby arranged in each case in front of the side window 18 , in particular in the direction of the rear 25 of the motor vehicle 10 .

[0046] Alternatively, if at least one aerodynamic device 16 is assigned to at least one side window 18, the paneling component can in particular be a door paneling component 31. Figure 2 6 in the figure, wherein the aerodynamic devices 16 are arranged below the side windows 18 respectively.

[0047] The motor vehicle 10 comprises in particular at least one vent 15. The vent 15 is designed to generate an air flow 19. Here, at least one vent 15 is arranged in the motor vehicle 10 so that the air flow 19 reaches at least one aerodynamic device 16. In the exemplary embodiment shown, the motor vehicle 10 has a plurality of vents 15. Thus, the vent 15 can be arranged in the instrument panel 32 and / or in the door paneling part 31 and / or in the side paneling section 23 and / or in the console 33.

[0048] Although the present invention has been illustrated and described in more detail based on the preferred exemplary embodiments, the present invention is not limited to the disclosed examples, and those skilled in the art may derive other variations therefrom without departing from the scope of protection of the present invention.

[0049] These drawings are not necessarily accurate in all details and are to scale, and may be presented in an enlarged or reduced scale to provide a better overview. Therefore, the functional details disclosed herein should not be understood as limiting, but merely as an illustrative basis that provides guidance to those skilled in the art to use the invention in a general manner.

[0050] As used herein, the expression "and / or" is used in conjunction with a series of two or more elements, meaning that each of the elements may be used alone, or any combination of two or more of the elements may be used. For example, if a configuration is described that includes components A, B, and / or C, the configuration may include A by itself; B by itself; C by itself; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.

[0051] List of Reference Numerals

[0052] 10 Motor Vehicles

[0053] 11 Rear Window

[0054] 12 Roof

[0055] 13 Interior Cabin

[0056] 14 Roof lining

[0057] 15 Vents

[0058] 16 Aerodynamics

[0059] 17 Windshield

[0060] 18 Side Window

[0061] 19 Air Flow

[0062] 20 A-pillar

[0063] 21 B-pillar

[0064] 22 C-pillar

[0065] 23 Side panel parts

[0066] 24 ago

[0067] 25 After

[0068] 26 doors

[0069] 27 Back door

[0070] 28 Incident flow area

[0071] 29 Outflow area

[0072] 30 Turbulence

[0073] 31 Door panel parts

[0074] 32 Dashboard

[0075] 33 Console

Claims

1. A motor vehicle (10) comprising: An interior passenger cabin (13) at least partially surrounded by windows, wherein at least one windshield (17) or one side window (18) or one rear window (11) is assigned an aerodynamic device (16); the aerodynamic device (16) comprises a body having an inflow area (28) and an outflow area (29), wherein: The outflow region (29) faces a surface of the window facing the interior cabin (13) and is adapted to generate turbulence (30) when the air flow (19) impinges on the aerodynamic device (16); wherein the aerodynamic device (16) including the incident flow region (28) and the outflow region (29) is transparent; and wherein the body of the aerodynamic device (16) is in the shape of a pyramid and the turbulence (30) comprises a plurality of vortices; and At least one air vent (15) is arranged in the interior cabin (13) and is used to generate an air flow (19) in the direction of at least one aerodynamic device (16).

2. The motor vehicle (10) of claim 1, the window being the rear window (11).

3. The motor vehicle (10) of claim 1, the window being the side window (18).

4. The motor vehicle (10) of claim 1, the window being the windshield (17).

5. A motor vehicle (10) according to any one of claims 1 to 4, the aerodynamic device (16) being arranged on a surface of the window facing the interior passenger compartment (13).

6. A motor vehicle (10) according to any one of claims 1 to 4, the aerodynamic device (16) not being in contact with the window.

7. The motor vehicle (10) according to any one of claims 1 to 4, the window having a heating wire.

8. The motor vehicle (10) according to any one of claims 1 to 4, the motor vehicle (10) being a passenger car.

9. An aerodynamic device (16) for an interior cabin (13) at least partially surrounded by a window of a motor vehicle (10), the motor vehicle (10) having at least one vent (15) which is arranged in the interior cabin (13) and is used to generate an air flow (19) in the direction of the at least one aerodynamic device (16); the aerodynamic device (16) comprises a transparent body, the transparent body comprising an inflow region (28) and an outflow region (29) and a surface of the outflow region (29) facing the window facing the interior cabin (13); wherein The aerodynamic device (16) has a shape of at least one pyramid and generates turbulence (30) downstream of the outflow region (29) when the air flow (19) impinges on the incident flow region (28) of the aerodynamic device (16); wherein the turbulence (30) contains a plurality of vortices.

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