Motor vehicle window and motor vehicle comprising such motor vehicle window

Abstract

The invention relates to a motor vehicle window comprising a composite structure having at least two window bodies (4, 6) and a light source (16). The invention relates to a motor vehicle window comprising an opaque frame (8) arranged on top of a first window (4) such that the opaque frame (8) surrounds a second window (6), the light source (16) being fixed to the bottom of the first window (4).

Description

Field of the Invention

[0001] The present invention relates to a motor vehicle window according to the preamble of claim 1, in particular a window for a passenger car. Furthermore, the present invention relates to a motor vehicle comprising such a motor vehicle window. Background Art

[0002] Conventional motor vehicle windows and motor vehicles comprising such motor vehicle windows are known from the prior art in various embodiments.

[0003] Conventional motor vehicle windows generally comprise a composite structure having at least two panes which are stacked and in planar contact with one another. The panes are transparent.

[0004] In order to cover elements which are not visible from the interior and / or the exterior of the motor vehicle, it is known from the prior art that one of the panes should be provided with black printing.

[0005] Furthermore, it is known from the prior art that motor vehicle elements to be hidden will be covered by covering elements. For example, an aluminum strip fixed to the window is used for this purpose.

[0006] During the production of the window, attaching the covering element to the window requires additional steps, which in turn increases the production time and cost. Furthermore, if components are covered by the covering element, there is a risk that the covering element will become loose accidentally. Summary of the Invention

[0007] The object of the present invention is to provide a motor vehicle window through which motor vehicle components which should not be visible from the exterior and / or the interior of the motor vehicle can be covered. Furthermore, the object of the present invention is to provide a motor vehicle comprising such a motor vehicle window.

[0008] According to the present invention, this object is achieved by a motor vehicle window having the features of claim 1 and a motor vehicle having the features of claim 11.

[0009] Advantageous embodiments of the present invention are the subject matter of the dependent claims.

[0010] Any and all combinations of the features disclosed in the description, the claims and / or the drawings fall within the scope of the present invention. In particular, it is understood that within the scope of common language practice, linguistic paraphrases and / or analogous substitutions of the respective terms, in particular using synonyms supported by recognized language literature, are included in the content of this disclosure without explicit mention in their corresponding expressions.

[0011] Accordingly, according to the present invention, there is provided a motor vehicle window, in particular for a passenger car. The motor vehicle window includes a composite structure having at least two window panes and an opaque (i.e., non-transparent) frame. The opaque frame is provided on the first window pane such that it at least partially, in particular completely, surrounds the second window pane. Thus, the opaque frame preferably directly adjoins the second window pane in the circumferential direction.

[0012] Therefore, the core idea of the present invention is to provide a composite structure having at least two window panes, with the second window pane disposed on top of the first window pane and surrounded by an opaque frame in the transverse direction.

[0013] Thus, providing an opaque frame on the first window allows for a simple way to hide components that are fixed to the motor vehicle window and should not be visible from the outside of the motor vehicle.

[0014] For example, the opaque frame is part of the composite structure.

[0015] In a preferred embodiment of the motor vehicle window according to the present invention, the first window pane is an inner window pane, i.e., the window pane facing the interior of the motor vehicle.

[0016] The second window pane can be disposed on the side of the first window pane facing the outside of the motor vehicle.

[0017] For example, the second window pane lies flat on the first window pane, in particular directly or via an adhesive layer.

[0018] For example, the second window pane is smaller than the first window pane. The surface area of the second window pane can be less than the surface area of the first window pane.

[0019] In an exemplary embodiment of the motor vehicle window according to the present invention, the geometry of the bottom of the second window pane together with the opaque frame corresponds to the geometry of the top of the first window pane. Thus, the opaque frame together with the second window pane has the same dimensions as the first window pane in the transverse direction.

[0020] In a preferred embodiment, the motor vehicle window of the present invention includes three window panes.

[0021] For example, the first window pane is an inner window pane, the second window pane is a shade, and the third window pane is an outer window pane facing the outside of the motor vehicle.

[0022] The shade can be disposed between the first window pane and the third window pane.

[0023] For example, the geometry of the bottom of the third window pane corresponds to the geometry of the top of the second window pane together with the opaque frame.

[0024] In an exemplary embodiment of a motor vehicle window according to the invention, the shading body comprises or consists of a polymer dispersed liquid crystal layer.

[0025] For example, the polymer dispersed liquid crystal layer is arranged between two plastic films.

[0026] The plastic film can also be part of a second window pane, or the second window pane can also be connected to the first window pane and the third window pane respectively.

[0027] The polymer dispersed liquid crystal layer can have a polymer dispersed liquid crystal material (PDLC material) arranged between conductive layers.

[0028] For example, the conductive layers are arranged between two plastic films.

[0029] At least one of the plastic films is a hot melt adhesive film, for example, it can be made of polyvinyl butyral (PVB).

[0030] Furthermore, a polyethylene terephthalate film (PET film) can be provided as the plastic film.

[0031] For example, an opaque frame is also arranged between two plastic films. Thus, for example, only the polymer dispersed liquid crystal layer is surrounded by the opaque frame, while the polymer dispersed liquid crystal layer and the opaque frame circumferentially surrounding the polymer dispersed liquid crystal layer are covered by the top and bottom plastic films, especially over their entire surfaces by the top and bottom plastic films.

[0032] In an exemplary embodiment of a motor vehicle window according to the invention, the first window pane is a diffusing lens or diffuser, i.e., an optical element adapted to scatter light.

[0033] The first window pane can include a light scattering element in the window pane.

[0034] In an exemplary embodiment of a motor vehicle window according to the invention, the light scattering element is arranged on the first window pane, for example, printed over the entire surface or partially on the first window pane.

[0035] In a preferred embodiment of a motor vehicle window according to the invention, the first window pane includes optical elements, in particular lens structures, grids and / or holograms, for coupling light into and / or out of the light.

[0036] For example, the hologram is a volume hologram.

[0037] For example, the opaque frame has a closed frame shape profile.

[0038] It is also conceivable that the opaque frame only circumferentially surrounds a part of the second window pane, i.e., for example, is arranged on one side of the second window pane or on opposite sides of the second window pane.

[0039] In a preferred embodiment, a vehicle window according to the present invention comprises at least one light source.

[0040] The light source may be arranged such that light from the light source can be coupled into the first window pane.

[0041] The light source is fixed to the bottom of the first window pane, and when the vehicle window is installed on a vehicle as intended, the bottom of the first window pane faces the interior of the vehicle.

[0042] In a preferred embodiment of a vehicle window according to the present invention, the light source is arranged on the first window pane such that it is flush with the opaque frame in a first direction.

[0043] For example, the light source is completely covered by the opaque frame in the first direction.

[0044] For example, the first direction extends from the interior of the vehicle to the exterior of the vehicle, i.e., is orthogonal to the transverse direction of the vehicle window.

[0045] In an exemplary embodiment of a vehicle window according to the present invention, the opaque frame has the same thickness as the second window pane.

[0046] The opaque frame may have the same thickness as the polymer dispersed liquid crystal layer of the second window pane.

[0047] In an exemplary embodiment of a vehicle window according to the present invention, the outer edge of the opaque frame is aligned with the outer edges of the first window pane, the third window pane, and / or the plastic film. Thus, the vehicle window has a flat side surface.

[0048] In a preferred embodiment of a vehicle window according to the present invention, the light transmission level (tL) of the opaque frame is at least about 0, particularly 0.

[0049] For example, the opaque frame has a high light absorption level.

[0050] The opaque frame may be cloudy, scattering, and / or reflective.

[0051] For example, a hidden element is provided at the bottom of the second window pane, i.e., on the side of the second window pane facing the first window pane.

[0052] For example, the hidden element is a printed matter (particularly black printed matter) and / or a coating.

[0053] The hidden element may be in the shape of a frame.

[0054] For example, in the transverse and / or longitudinal direction of the window, particularly in the direction of the center of the window, the size of the hidden element is at least partially larger than the size of the opaque frame.

[0055] When viewed from the outside of the motor vehicle, the opaque frame can be completely covered by the hiding element.

[0056] For example, each window pane is plate-shaped. Thus, each window pane has, for example, a rectangular or square shape and a low height and / or curvature.

[0057] For example, the corners of the rectangle or square are rounded.

[0058] In a preferred embodiment of the motor vehicle window according to the invention, the motor vehicle window is a motor vehicle roof element.

[0059] For example, the motor vehicle window is a panoramic sunroof element or a sunroof element.

[0060] Furthermore, the invention relates to a motor vehicle which comprises a motor vehicle window as described above.

[0061] The motor vehicle window is part of the motor vehicle roof, in particular a panoramic sunroof assembly or a sliding sunroof assembly.

[0062] Other advantages and advantageous configurations of the subject matter of the invention can be found in the description, the drawings and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Exemplary embodiments of a motor vehicle window according to the invention are shown in the drawings in a schematically simplified manner and are explained in more detail in the following description.

[0064] Figure 1 is a top view of a motor vehicle window according to the invention; and

[0065] Figure 2 is Figure 1 a sectional view along line II-II in DETAILED DESCRIPTION

[0066] Figure 1 and Figure 2 show a motor vehicle window 2 according to the invention.

[0067] As can be seen from Figure 1 , the motor vehicle window 2 comprises a transparent inner region 18 forming an observation area and an edge region 20 or a frame region. The edge region 20 circumferentially surrounds the inner region 18 and is opaque, i.e., non-translucent, in particular turbid. The edge region 20 is defined by the geometry of an opaque frame 8 for hiding elements that should not be visible or should be covered when viewed from the outside 26 of the motor vehicle.

[0068] The motor vehicle window 2 comprises a composite structure having a first window pane 4, a second window pane 6, a third window pane 10, an opaque frame 8 and two plastic films 14 (see Figure 2 ).

[0069] The first window 4 is an inner window, i.e., the window of the motor vehicle window 2 facing the interior 24 of the motor vehicle. The first of the plastic films 14 is provided on the first window 4. The second window 6 and the opaque frame 8 are provided on the first plastic film 14. The second window 6 is completely surrounded by the opaque frame 8 in the circumferential direction. The opaque frame 8 and the second window 6 together cover the entire top of the first plastic film 14, and the plastic film 14 in turn completely covers the entire top of the first window 4.

[0070] Therefore, the first window 4, the first plastic film 14, and the second window 6 together with the opaque frame 8 have the same lateral dimension or the same contour in the plan view. Therefore, the sum of the surface areas of the bottom of the opaque frame and the bottom of the second window 6 corresponds to the area of the top of the first window 4.

[0071] It is also conceivable (different from the illustrated embodiment) that the opaque frame is provided only on one side or on each side of the second window 6.

[0072] The second plastic film 14 connecting the second window 6 and the opaque frame 8 to the third window 10 is provided on the top of the second window 6 and the opaque frame 8. Therefore, the third window 10 forms the top of the motor vehicle window 2 facing the exterior 26 of the motor vehicle.

[0073] The dimension of the third window 10 in the transverse direction corresponds to the dimension of the plastic film 14, the dimension of the second window 6 together with the opaque frame 8, and the dimension of the first window 4.

[0074] Different from the embodiment shown in the drawings, it is also conceivable to directly provide the second window 6 and / or the opaque frame 8 on the first window 4 or the third window 10, i.e., without providing the plastic film 14.

[0075] The second window 6 is formed by a polymer dispersed liquid crystal layer 12 and thus serves as a shading device.

[0076] The plastic film 14 has the same dimension or the same geometry as the first window 4 and the third window 10 in the transverse direction.

[0077] The first window 4 is a diffusing lens. The light source 16 is provided at the bottom of the first window 4 facing the interior 24 of the motor vehicle. The light from the light source 16 can be coupled into the first window 4.

[0078] The light source 16 is provided on the first window 4 such that the light source 16 is completely covered in the first direction, i.e., in the direction from the interior 24 of the motor vehicle to the exterior 26 of the motor vehicle. Therefore, the light source 16 is not visible from the exterior 26 of the motor vehicle.

[0079] The motor vehicle window 2 is a motor vehicle roof element, in particular a panoramic sunroof.

[0080] Reference numerals list

[0081] 2Motor vehicle windows

[0082] 4First Form

[0083] 6 Second Form

[0084] 8 Opaque Frames

[0085] 10Third Form

[0086] 12Polymer dispersed liquid crystal layer

[0087] 14 Plastic film

[0088] 16 Light Sources

[0089] 18Inner Area

[0090] 20 Edge Area

[0091] 22 Cover element

[0092] 24Interior of motor vehicle

[0093] 26 Motor vehicle exterior

Claims

1. A motor vehicle window, comprising a composite structure having at least two window panes (4, 6) and a light source (16), characterized in that, The motor vehicle window includes an opaque frame (8), which is arranged at the top of a first window pane (4) such that the opaque frame (8) surrounds a second window pane (6), and a light source (16) is fixed to the bottom of the first window pane (4).

2. The motor vehicle window according to claim 1, characterized in that, The motor vehicle window includes three window panes (4, 6, 10), the first window pane (4) being an inner window pane, the second window pane (6) being a shading element, and the third window pane (10) being an outer window pane, and the second window pane (6) is arranged between the first window pane (4) and the third window pane (10).

3. The motor vehicle window according to claim 1 or 2, characterized in that, The second window pane (6) includes or consists of a polymer dispersed liquid crystal layer (12).

4. The motor vehicle window according to claim 3, characterized in that, The polymer dispersed liquid crystal layer (12) and / or the opaque frame (8) is arranged between two plastic films (14).

5. The motor vehicle window according to any one of claims 1 to 4, characterized in that, The first window pane (4) is a diffusing lens.

6. The motor vehicle window according to any one of claims 1 to 5, characterized in that, The light source (16) is arranged such that light from the light source (16) can be coupled into the first window pane (4).

7. The motor vehicle window according to any one of claims 1 to 6, characterized in that, The light source (16) is arranged on the first window pane (4) such that the light source (16) is flush with the opaque frame (8) in a first direction, in particular completely covered by the opaque frame (8).

8. The motor vehicle window according to any one of claims 1 to 7, characterized in that, The opaque frame (8) has the same thickness as the second window pane (6) and / or the polymer dispersed liquid crystal layer (12).

9. The motor vehicle window according to any one of claims 1 to 8, characterized in that, The outer edge of the opaque frame (8) is flush with the outer edge of the first window pane (4) and / or the third window pane (10).

10. The motor vehicle window according to any one of claims 1 to 9, characterized in that, The motor vehicle window (2) is a motor vehicle roof element.

11. A motor vehicle, comprising a motor vehicle window (2) according to any one of claims 1 to 10.

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