MOTOR VEHICLE HAVING A DEVICE FOR AIRBORNE SOUND ACOUSTIC SENSING OF THE SURROUNDINGS OF THE MOTOR VEHICLE

Abstract

The invention relates to a motor vehicle (1) having a device (2) for airborne sound acoustic sensing of the surroundings of the motor vehicle (1), wherein the device (2) comprises at least one microphone (3), which is integrated in a body part (4) or in an attachment part (5) of the motor vehicle (1). According to the invention, at least one opening (6) is formed in the body component (4) or in the attachment part (5) for the entry of sound waves and at least one film (7) or membrane is arranged in the region of the opening (6).

Claims

1. A motor vehicle (1) with an assembly (2) for airborne sound acoustic sensing of surroundings of the motor vehicle (1), wherein the assembly (2) comprises at least one microphone (3) that is integrated within a body component (4) or in an attachment part (5) of the motor vehicle (1), characterized in that at least one opening (6) for entry of sound waves is formed in the body component (4) or in the attachment part (5) and at least one film (7) or membrane is disposed in a vicinity of the opening (6).

2. The motor vehicle (1) as claimed in claim 1, characterized in that the film (7) or membrane is fastened to an outside of the body component (4) or to the attachment part (5).

3. The motor vehicle (1) as claimed in claim 1, characterized in that the body component (4) or the attachment part (5) is completely covered or enveloped by the film (7) or membrane.

4. The motor vehicle (1) as claimed in claim 1, characterized in that an acoustic labyrinth is formed and/or a grid is disposed in the vicinity of the opening (6) in the body component (4) or in the attachment part (5).

5. The motor vehicle (1) as claimed in claim 1, characterized in that the assembly (2) for airborne sound acoustic sensing of the surroundings of the motor vehicle (1) comprises a housing (8) accommodating the microphone (3) and at least one housing opening (9) for the entry of sound waves is formed in the housing (8), wherein the housing opening (9) is completely covered by at least one film (7) or membrane.

6. The motor vehicle (1) as claimed in claim 5, characterized in that the housing opening (9) is disposed in the vicinity of the opening (6) in the body component (4) or the attachment part (5).

7. The motor vehicle (1) as claimed in claim 5, characterized in that a cap (11) is disposed on the film (7) or membrane covering the housing opening (9), the cap comprising at least one opening (12) for passage of sound waves.

8. The motor vehicle (1) as claimed in claim 5, characterized in that an acoustic labyrinth is formed and/or a grid is disposed in a vicinity of the opening (9) in the housing (8).

9. The motor vehicle (1) as claimed in claim 1, characterized in that the body component (4) is a mudguard or a windscreen wiper cover and/or the attachment part (5) is an external mirror, a mounting for an external camera, an antenna, a roof rail, a spoiler or a door handle.

10. The motor vehicle (1) as claimed in claim 1, characterized in that the at least one opening (6) in the body component (4) or the attachment part (5) is oriented perpendicularly or obliquely downwards.

11. The motor vehicle (1) as claimed in claim 1, characterized in that the film (7) or membrane covers the at least one opening (6) and is fastened to an outside of the body component (4) or to the attachment part (5).

12. The motor vehicle (1) as claimed in claim 11, wherein the film (7) or membrane is glued to the body component (4) or to the attachment part (5).

13. The motor vehicle (1) as claimed in claim 5, characterized in that the housing opening (9) is disposed in the vicinity of the opening (6) in the body component (4) or the attachment part (5), wherein a collar (10) bounding the opening (9) in the housing (8) engages in the opening (6) in the body component (4) or the attachment part (5).

14. The motor vehicle (1) as claimed in claim 5, characterized in that a cap (11) is disposed on the film (7) or membrane covering the housing opening (9), the cap comprising at least one opening (12) for passage of sound waves, wherein the cap (11) is joined to the collar (10) of the housing (8) by a plug-in, press-in, clamp, latching, threaded and/or glued joint.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Preferred embodiments of the invention are described in detail below using the accompanying drawings. In the drawings:

[0021] FIG. 1 shows a perspective representation of an external mirror with an assembly for airborne sound acoustic sensing of the surroundings of a motor vehicle,

[0022] FIG. 2 shows a schematic longitudinal section through the assembly of FIG. 1 and

[0023] FIG. 3 shows a schematic longitudinal section through a variation of the assembly of FIG. 1.

DETAILED DESCRIPTION

[0024] The representation of FIG. 1 shows an attachment part 5 of a motor vehicle 1 with an assembly 2 for airborne sound acoustic sensing of the surroundings of the motor vehicle 1. The attachment part 5 is an external mirror with a mirror 13 that is accommodated in a housing 15. Because the assembly 2 can be integrated not only in an attachment part 5, but also in a body component 4, both reference numbers are stated in the following FIGS. 2 and 3.

[0025] The assembly 2 represented in FIG. 1 for acoustic sensing of the surroundings of a motor vehicle 1 comprises three microphones 3 in the present case, which are be disposed behind openings 6 of the attachment part 5. The microphones 3 are accommodated in a housing 8 also comprising openings 9 in the vicinity of the openings 6, so that the sound waves pass through the openings 6 and 9 to the microphones 3 (see FIGS. 2 and 3). The openings 6 and/or 9 are covered by films 7 in order to prevent the entry of dirt and moisture.

[0026] The microphones 3 integrated within the attachment part 5 are optimally protected against external effects. On the one hand this is because the housing 8 and the attachment part 5 prevent mechanical damage to the microphones 3. On the other hand a seal is achieved by means of the films 7 disposed in the openings 6, 9. The openings 6, 9 are also disposed on an underside 14 of the attachment part 5, so that dirt deposition is counteracted.

[0027] The sectional representation of FIG. 2 shows that the openings 9 in the housing 8 are bounded by a collar 10 that engages in the openings 6 in the attachment part 5 or the body component 4. A first small film 7 is placed on the collar 10. Then a second film 7 can be applied that covers a large area of the region and thus prevents lifting and detachment of the first film. The second film 7 is glued to the attachment part 5 over the entire area for this purpose.

[0028] The sectional representation of FIG. 3 shows a modification. Instead of a second film 7, a cap 11 is provided, by means of which the first film 7, which is directly applied to the collar 10, is clamped. The cap 11 is pressed onto the collar 10 for this purpose. The cap 11 thus prevents detachment of the film 7, in particular at the edge thereof. A central aperture 12 in the cap 11 ensures the passage of sound waves.