Door Assembly of a Vehicle Having a Loudspeaker, and Vehicle Having a Door Assembly of This Type

Abstract

A door assembly of a vehicle includes an outer door element, an inner door element, a loudspeaker, which is arranged on the inner door element, and a loudspeaker housing. The loudspeaker housing is arranged in an intermediate space between the inner door element and the outer door element and covers the loudspeaker. The loudspeaker housing also has at least one opening which communicates with the intermediate space, such that the intermediate space can be used as a resonance volume for the loudspeaker. A vehicle is also disclosed having a door assembly of this type.

Claims

1.-11. (canceled)

12. A door assembly of a vehicle, comprising: an outer door element; an inner door element; a loudspeaker which is arranged on the inner door element; and a loudspeaker housing which is arranged in an intermediate space between the inner door element and the outer door element and covers the loudspeaker, wherein the loudspeaker housing has at least one opening which communicates with the intermediate space, so that the intermediate space forms a resonance volume for the loudspeaker.

13. The door assembly according to claim 12, wherein the at least one opening has a cross section of at least 0.0015 m2.

14. The door assembly according to claim 12, wherein the at least one opening has a cross section of at least 0.0030 m2.

15. The door assembly according to claim 12, wherein the at least one opening has a cross section of approximately 0.0045 m2.

16. The door assembly according to claim 12, wherein the at least one opening is arranged above the loudspeaker, in a direction parallel to a vertical axis of the vehicle.

17. The door assembly according to claim 16, wherein the at least one opening is arranged in an area of the loudspeaker housing which is opposite the loudspeaker, in the direction parallel to the vertical axis of the vehicle.

18. The door assembly according to claim 12, wherein the at least one opening is oriented such that a main component of a normal vector of the at least one opening is parallel to a vertical axis of the vehicle.

19. The door assembly according to claim 12, wherein the at least one opening is oriented such that a main component of a normal vector of the at least one opening is parallel to a longitudinal axis of the vehicle.

20. The door assembly according to claim 12, wherein the at least one opening is arranged in an area of the loudspeaker housing which faces away from a background noise source of the vehicle.

21. The door assembly according to claim 12, wherein at least one area of a face of the loudspeaker housing which is opposite the outer door element is shaped such that a sound entering the intermediate space through the outer door element is directed away from the at least one opening.

22. The door assembly according to claim 21, wherein the at least one area adjoins the at least one opening.

23. The door assembly according to claim 19, wherein the at least one opening has a first opening and a second opening, and the first opening and the second opening are arranged directly opposite one another.

24. A vehicle comprising a door assembly according to claim 12.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG. 1 shows a highly simplified schematic view of a door assembly according to a first exemplary embodiment of the present invention.

[0044] FIG. 2 shows a simplified, schematic perspective view of an area of the door assembly according to the first exemplary embodiment.

[0045] FIG. 3 shows a simplified, schematic sectional view through part of the area of the door assembly in FIG. 2.

[0046] FIG. 4 shows a simplified, schematic perspective view of an area of the door assembly according to a second exemplary embodiment.

[0047] FIG. 5 shows a simplified, schematic sectional view through part of the area of the door assembly in FIG. 4.

[0048] FIG. 6 shows a simplified, schematic further sectional view through part of the area of the door assembly in FIG. 4.

DETAILED DESCRIPTION OF THE DRAWINGS

[0049] A door assembly 1 of a vehicle 100 according to a first exemplary embodiment of the present invention is subsequently described in detail with reference to FIGS. 1 and 3.

[0050] FIG. 1 is a schematic view of an area of the vehicle 100 in which the door assembly 1 is provided. The door assembly 1 separates a passenger compartment (passenger cell) 103 of the vehicle 100 from an external space 200. The vehicle 100 can be, for example, a motor vehicle or an electric vehicle.

[0051] The door assembly 1 comprises an outer door element 2, an inner door element 3, a loudspeaker 4, which is arranged on the inner door element 3, and a loudspeaker housing 5. FIG. 1 also shows a door lining 105 on the inner door element 3.

[0052] The loudspeaker 4 is positioned, in particular, above a tire 104 of the vehicle 100, in a direction parallel to a vertical axis 101 of the vehicle 100.

[0053] In the door assembly 1, the loudspeaker housing 5 is arranged in an intermediate space 6 between the inner door element 3 and the outer door element 2. In particular, the loudspeaker housing 5 is provided or mounted on the inner door element 3.

[0054] Furthermore, the loudspeaker 4 is, in particular, plugged into an opening 30 in the inner door element 3. A first part of the loudspeaker 4 is therefore located in the intermediate space 6, facing the outer door element 2. A second part of the loudspeaker 4 faces the passenger compartment 103 of the vehicle 100.

[0055] The loudspeaker housing 5 covers the loudspeaker 4. This means, in particular, that the part of the loudspeaker 4 which is located in the intermediate space 6, facing the outer door element 2, is covered by the loudspeaker housing 5.

[0056] In addition, the loudspeaker housing 5 has an opening 50 which communicates with the intermediate space 6. An interior (air space) 53 of the loudspeaker housing 5 is therefore connected to the intermediate space 6. As a result, the intermediate space 6 serves as a resonance volume for the loudspeaker 4, which is therefore embodied as a woofer.

[0057] In addition, a background noise 201 which comes from the outside, such as for example a rolling noise of the tire 104, can be deflected and attenuated by the loudspeaker housing 5.

[0058] The opening 50 is arranged in an area 54 of the loudspeaker housing 5 which faces away from the tire 104 which acts as a background noise source. As a result, the propagation of the background noise 201, caused by the tire 104, as far as the opening 50 is made more difficult.

[0059] The area 54 of the loudspeaker housing 5 in which the opening 50 is arranged is opposite the loudspeaker 4, in a direction parallel to the vertical axis 101 of the vehicle 100. Therefore, the background noise 201 must cover a long distance until it reaches the opening 50 at all. The longer the distance up to the opening 50, the more the energy, and therefore the pressure of the background noise wave, are reduced.

[0060] In particular, the opening 50 is arranged above the loudspeaker 4, in a direction parallel to the vertical axis 101 of the vehicle 100. Therefore, background noise which propagates upward from below, such as for example rolling noise of the tire 104, cannot easily pass into the opening 50.

[0061] The loudspeaker housing 5 does not have an opening in the lower area in which the loudspeaker 4 is positioned.

[0062] FIG. 2 shows a perspective illustration of an area of the door assembly 1 when viewed from outside (the direction from the exterior space 200 to the passenger compartment 103 of the vehicle). For the purposes of illustration, the outer door element 2 has been removed in FIG. 2.

[0063] As is apparent from FIG. 2, the inner door element 3 has a first part 31 and a second part 32. In particular, the first part 31 is embodied as a sheet metal element, wherein the second part 32 is embodied as a lightweight beam made of plastic. The second part 32 is applied to the first part 31 and connected to the first part 31.

[0064] It is also apparent from FIG. 2 that the loudspeaker housing 5 is provided on the second part.

[0065] In order to acquire a better impression of the design of the loudspeaker housing 5, FIG. 3 illustrates part of the area of the door assembly 1 from FIG. 2 in section.

[0066] In this context it is apparent that the opening 50 in the loudspeaker housing 5 is oriented in such a way that a main component 91 of a normal vector 90 of the opening 50 is parallel to the vertical axis 101 of the vehicle 100. This ensures that the background noise 201 firstly has to be deflected, in particular approximately by 180°, in order to pass into the interior 53 of the loudspeaker housing 5 via the opening 50. The energy of the background noise 201 is reduced even further by the deflection.

[0067] The opening 50 in the loudspeaker housing 5 has a cross section of at least 0.0015 m.sup.2, preferably of at least 0.0030 m.sup.2, particularly preferably of 0.0045 m.sup.2. The intermediate space 6 is therefore optimally used as a resonance space of the loudspeaker 5.

[0068] It is also apparent from FIG. 3 that the opening 30 in which the loudspeaker 4 is arranged is formed in the second part 32.

[0069] In the text which follows, a door assembly according to a second exemplary embodiment of the present invention is described with reference to FIGS. 4 to 6.

[0070] The door assembly 1 according to the second exemplary embodiment differs from that according to the first exemplary embodiment basically in respect of the number of openings provided in the loudspeaker housing 5 and their arrangement.

[0071] The loudspeaker housing 5 of the door assembly according to the second exemplary embodiment therefore has a first opening 51 and a second opening 52.

[0072] The first opening 51 and the second opening 52 are arranged directly opposite one another (FIG. 5). Owing to this arrangement, background noise 202, 203 enters the interior 53 of the loudspeaker housing in opposite directions. Therefore, the instances of background noise 202, 203 can be attenuated with respect to one another.

[0073] “Directly opposite one another” means in this case an overlap of 100% of a cross section area of the second opening 52 with the first opening 51 in a direction parallel to the vertical axis 101 of the vehicle 100. The first opening 51 has a larger cross section than the second opening 52.

[0074] In addition, the sum of the cross sections of the first opening 51 and of the second opening 52 is at least 0.0015 m.sup.2, preferably at least 0.0030 m.sup.2, particularly preferably 0.0045 m.sup.2.

[0075] In particular the two openings 51, 52 are arranged above the loudspeaker 4, in a direction parallel to the vertical axis 101 of the vehicle 100.

[0076] In contrast to the opening 50 in the loudspeaker housing 5 according to the first exemplary embodiment, the first opening 51 and the second opening 52 are not formed here in an area of the loudspeaker housing 5 which is opposite the loudspeaker 4 but rather on the sides of the loudspeaker 4, in a direction parallel to the longitudinal axis 102 of the vehicle 100.

[0077] In addition, both the first opening 51 and the second opening 52 are oriented in such a way that a main component 91 of a normal vector 90 of the respective opening is parallel to the longitudinal axis 102 of the vehicle 100. However, to provide a better overview only the normal vector of the first opening 51 with its components is shown in FIG. 5.

[0078] This arrangement of the first opening 51 and of the second opening 52 can furthermore also prevent the penetration of a background noise 204 which occurs around an exterior rear view mirror 106 of the vehicle 100 as result of the aerodynamic effects.

[0079] The first opening 51 and the second opening 52 are each arranged in an area 54 of the loudspeaker housing 5 which faces away from the tire 104 which acts as a main source of background noise for the loudspeaker 4. In addition, the area of the loudspeaker housing 5 in which the first opening 51 is formed also faces the exterior rear view mirror 106. The exterior rear view mirror 106 acts as a secondary source of background noise for the loudspeaker 4.

[0080] It is also apparent from FIG. 6 that an area 55 of a face of the loudspeaker housing 5 which is opposite the outer door element 2 is shaped in such a way that a sound entering the intermediate space 6 through the outer door element 2 can be conducted away from the second opening 52.

[0081] In particular, the area 55 is inclined with respect to the outer door element 2. The area 55 of the loudspeaker housing 5 advantageously adjoins the second opening 52.

[0082] Background noise which impinges on the loudspeaker housing 5 is therefore conducted back to the outer door element 2. This has the advantage that the background noise, or at least part thereof, is directed away from the second opening 52 and at the same time attenuated further.

LIST OF REFERENCE NUMBERS

[0083] 1 Door assembly [0084] 2 Outer door element [0085] 3 Inner door element [0086] 4 Loudspeaker [0087] 5 Loudspeaker housing [0088] 6 Intermediate space [0089] 30 Opening in inner door element [0090] 31 First part of inner door element [0091] 32 Second part of inner door element [0092] 50 Opening in loudspeaker housing [0093] 51 First opening in loudspeaker housing [0094] 52 Second opening in loudspeaker housing [0095] 53 Interior (air space) of the loudspeaker housing [0096] 54 Area of loudspeaker housing [0097] 55 Area of loudspeaker housing [0098] 90 Normal vector of opening [0099] 91 Main component of opening [0100] 100 Vehicle [0101] 101 Vertical axis of vehicle [0102] 102 Longitudinal axis of vehicle [0103] 103 Passenger compartment/passenger cell of vehicle [0104] 104 Tire [0105] 105 Door lining [0106] 106 Exterior rear view mirror [0107] 200 Space outside vehicle [0108] 201 Background noise [0109] 202 Background noise [0110] 203 Background noise [0111] 204 Background noise