Arrangement of a lighting device on a laminated glass pane for a vehicle, vehicle, and laminated glass pane for a vehicle

Abstract

The invention relates to an arrangement of a lighting device (10) on a laminated glass pane (12) for a vehicle, the laminated glass pane having two panes (14, 16) and a film (18) located between the panes (14, 16), in which arrangement the lighting device (10) has at least one light source (22) which is located at least in part in a corresponding recess (24) in one of the panes (14, 16), the light source (22) being connected to a carrier element (30) via which the light source (22) can be supplied with electrical energy, and one pane (16) being provided locally, on its side (26) facing away from the other pane (14) and from the film (18), with at least one coating (28) that covers the recess (24), the light source (22), and the carrier element.

Description

[0001] Arrangement of a lighting device on a laminated glass pane for a vehicle, vehicle and laminated glass pane for a vehicle

[0002] The invention relates to an arrangement of a lighting device on a laminated glass pane for a vehicle according to the preamble of claim 1. Furthermore, the invention relates to a vehicle, in particular a motor vehicle, according to claim 7 and to a laminated glass pane according to the preamble of claim 9.

[0003] EP 0 997 333 B1 discloses a transparent roof module for a vehicle roof, comprising a transparent pane designed as a clear glass pane, in which at least and exclusively a part of the surface of the pane, which due to its design cannot be used for viewing from the vehicle interior to the outside, is provided with solar cells.

[0004] The object of the present invention is to provide an arrangement of a lighting device on a laminated glass pane for a vehicle, a vehicle with such an arrangement and a laminated glass pane for a vehicle, so that a particularly high level of robustness can be achieved, in particular with regard to glass breakage.

[0005] This object is achieved according to the invention by an arrangement having the features of claim 1, by a vehicle having the features of claim 7, and by a laminated glass pane having the features of claim 9. Advantageous embodiments with expedient further developments of the invention are the subject of the dependent claims.

[0006] The invention relates to an arrangement of a lighting device on a laminated glass pane for a vehicle, in particular for a motor vehicle. The laminated glass pane has two panes that are arranged in at least partial mutual overlap. Thus, at least respective partial regions of the panes overlap one another. In particular, the panes, which are preferably designed as glass panes, overlap one another at least predominantly, in particular completely. The laminated glass pane also has a film that is arranged between the panes and in particular between the mutually overlapping partial regions of the panes. In particular, the film is made of a plastic and thus designed as a plastic film. For example, the plastic from which the film is formed can be PVB (polyvinyl butyral), so that the film is preferably designed as a PVB film.The panes and the film, and thus the laminated glass pane, are translucent and are used, for example, as or for a roof element of a vehicle roof, so that the interior of the vehicle is at least partially delimited upwards in the vertical direction of the vehicle by the laminated glass pane. It is conceivable for the roof element to be formed separately from the vehicle body that delimits the interior and to be connected to the body. Since the film and the panes are translucent, light, such as sunlight in particular, from the vehicle's surroundings can penetrate the laminated glass pane and, particularly if there is no shading of the interior, penetrate into the interior. The roof or roof element is therefore, in particular, a glass roof.

[0007] In the arrangement, the lighting device has at least one light source, which can be operated electrically, for example. The light source can provide light, i.e. emit light, in particular by electrically operating the light source. The light source is arranged at least partially, in particular at least predominantly or completely, in a corresponding recess in one of the panes. If the light source provides light, the light provided by the light source can be fed, i.e. coupled, into one of the panes and via the one pane into the laminated glass pane, so that, for example, particularly advantageous illumination of the laminated glass pane and the interior can be realized. For example, the light source is designed as a light-emitting diode (LED).

[0008] In order to be able to achieve a particularly high level of robustness of the laminated glass pane, in particular against breakage, i.e. in order to be able to keep the susceptibility to breakage of the laminated glass pane particularly low, the invention provides that the one pane having the recess is provided on its side facing away from the other pane and the film and facing the interior of the vehicle, also referred to as the inner side, in particular only with at least one coating which covers the recess and the light source, in particular completely in each case, and which, for example, directly touches the inner side. It has been shown that the recess, also referred to as a hole or opening, which is formed and / or drilled into one pane, for example, weakens this pane to such an extent that its mechanical stability is reduced. Furthermore, the recess can lead to increased internal stresses in one pane.It is conceivable for the lighting device to have at least one further light source or a plurality of further light sources, wherein the previous and following statements regarding the first light source can readily be applied to the respective further light source and vice versa. It is thus conceivable for the respective further light source to be arranged at least partially in a respective further recess of the one pane, wherein the following and previous statements regarding the first recess can readily be applied to the respective further recess and vice versa. The higher the number of light sources and the corresponding recesses in the one pane, the more the one pane, which is in particular designed as a glass pane, is weakened. In other words, the susceptibility of the one pane to breakage increases with the number of recesses.In the invention, one pane is reinforced by means of the coating, thereby achieving an advantageously high degree of robustness of the one pane, particularly with respect to breakage. If one pane has several recesses in which respective light sources are arranged, it is conceivable for one pane, on its side facing away from the other pane and the film, to be provided locally with a respective coating that covers the respective recess and the respective light source, in particular completely, wherein it is conceivable for the coatings to be spaced apart from one another and thus separated from one another.

[0009] However, it has proven particularly advantageous if the coatings are bonded to one another, in particular over a large area, whereby the coatings form a particularly continuous overall coating. In other words, it has proven advantageous if one pane is provided with a coating on its side facing away from the other pane and the film, which coating covers the recesses and the light sources, in particular completely in each case, and thus is, for example, the aforementioned overall coating. This allows one pane to be reinforced in a particularly advantageous manner. For example, the aforementioned side of one pane faces the interior and thus forms an inner side of one pane facing the interior, which inner side of one pane is thus arranged on an inner side of the other pane facing the interior and is thus designed as an inner pane, and hence as an inner pane.Accordingly, for example, the other pane is arranged on an outer side of the one pane facing away from the interior, so that the other pane is, for example, an outer pane, i.e. an outer pane.

[0010] In order to be able to reinforce one pane particularly advantageously by means of the coating so that a particularly high level of robustness can be achieved, one embodiment provides that the coating is made of a plastic.

[0011] It has proven advantageous if the plastic from which the coating is made is ethylene vinyl acetate (EVA). This allows for particularly high levels of robustness.

[0012] It is conceivable that the coating is provided as a plastic film, particularly in addition to the film, which is very preferably made of EVA and thus designed as a tear-resistant EVA film. In particular, the plastic film can be a shatter-resistant film, which can very preferably be made of the aforementioned EVA. For example, the plastic film is laminated locally, i.e., locally, to one pane, i.e., to the side of one pane, which allows the one pane to be particularly well reinforced.

[0013] The feature that one pane is provided with the at least one coating on its side facing away from the other pane and the film, in particular exclusively, locally, i.e. locally, is to be understood as meaning that the coating is arranged, in particular exclusively, in at least or precisely a first partial region of one pane, wherein one pane has at least or precisely one second partial region, in particular directly adjoining the first partial region, which is free of the coating. In other words, on the said side, one pane has a surface which faces in particular the interior of the vehicle. The aforementioned first partial region of one pane is a first partial region of the surface, such that the coating is arranged in the first partial region of the surface.The aforementioned second partial area of ​​one pane is a second partial area of ​​the surface, wherein the second partial area adjoins, in particular directly, the first partial area. In the second partial area, the surface of one pane is free of the coating. Thus, the surface or the one pane on the aforementioned side is only locally coated. This allows for effective, lightweight, and cost-effective reinforcement of one pane.

[0014] Another design is characterized by the fact that the coating is made of a plastic foam. This allows for particularly high robustness.

[0015] In order to be able to reinforce one pane particularly effectively by means of the plastic foam, it is provided in a further embodiment of the invention that the plastic foam is a polyurethane foam, thus a PU foam.

[0016] A further embodiment provides for the recess to be designed as a blind hole. This avoids excessive weakening of one of the panes. A blind hole is an opening that does not completely penetrate one of the panes, but is completely delimited by a wall region of one of the panes towards the film and the other pane. On the aforementioned side of one of the panes, the blind hole is open so that, for example, during manufacture of the arrangement, the light source can be moved, in particular inserted, into the blind hole from the side of one of the panes.

[0017] According to the invention, it is further provided that the light source is connected to a carrier element, also referred to as a light element carrier, via which the light source can be supplied with electrical energy, whereby the light source can provide the said light. In particular, the carrier element is or has, for example, a circuit board via which the light source can be supplied with electrical energy. In order to be able to achieve particularly high robustness, it is provided that the coating covers the carrier element, in particular towards the interior, in addition to the recess and the light source protruding at least partially into the recess or alternatively arranged completely therein, and thus overlaps it, in particular completely.Thus, for example, the coating touches both the carrier element, in particular a surface of the carrier element facing away from one of the panes, and also the one of the panes, as a result of which one of the panes can be advantageously reinforced. Finally, it has proven particularly advantageous if the light source is connected to one of the panes by adhesive bonding. Preferably, the light source is adhesively bonded into the recess. This means, in particular, that the light source is adhesively bonded to one of the panes within the recess. In other words, an adhesive is arranged in the recess, by means of which the light source is adhesively bonded to one of the panes. This advantageously counteracts any weakening of the one of the panes caused by the recess itself, so that a particularly high level of robustness can be achieved.

[0018] The invention also includes a vehicle, preferably designed as a motor vehicle, in particular a car, which has an arrangement according to the invention. Advantages and advantageous embodiments of the arrangement according to the invention are to be regarded as advantages and advantageous embodiments of the vehicle according to the invention, and vice versa. The same applies to a laminated glass pane according to claim 7.

[0019] It has proven particularly advantageous if the coating is arranged outside a viewing area of ​​the laminated glass pane, also known as the see-through area or see-through glass surface. The viewing area of ​​the laminated glass pane is an area through which persons in the interior of the vehicle can see through and thus view the surroundings of the vehicle. Since it is now preferably provided that the coating is arranged, in particular completely, outside the viewing area, a person in the interior of the vehicle cannot see the coating, and the viewing area is not undesirably reduced or otherwise negatively affected by the coating.

[0020] Further advantages and details of the invention will become apparent from the following description and the drawings, which show:

[0021] Fig. 1 shows a partial schematic and sectional side view of an arrangement of a lighting device on a laminated glass pane for a vehicle; and

[0022] Fig. 2 shows a schematic top view of the arrangement. Fig. 1 shows a partial schematic and sectional side view of an arrangement of a lighting device 10 on a laminated glass pane 12 of a vehicle, wherein the interior of the vehicle is designated by 13 in Fig. 1. The interior 13 is formed by a body of the vehicle, preferably designed as a self-supporting body, which is preferably designed as a motor vehicle, in particular as a passenger car.

[0023] The laminated glass pane 12 is, for example, a component of a roof element, also referred to as a glass roof, which is formed separately from the body and connected to the body. The laminated glass pane 12 has a first pane 14 formed as a first glass pane and a second pane 16 formed as a second glass pane, which overlap one another at least in respective overlapping regions. The laminated glass pane 12 also comprises a film 18, preferably formed as a plastic film, which is arranged between the panes 14 and 16, in particular between the overlapping regions, so that the panes 14 and 16 and the film 18 overlap one another at least in respective overlapping regions.The panes 14 and 16, which are designed as glass panes, and the film are translucent, so that light such as sunlight from an environment 20 of the vehicle can penetrate the panes 14 and 16 and the film 18 and, in particular when there is no shading of the interior 13, can penetrate into the interior 13, i.e., can shine through.

[0024] In conjunction with Fig. 2, it can be seen that in the arrangement, the lighting device 10 has light sources 22 designed to provide light. For example, the respective light source 22 is electrically operable, so that by supplying the respective light source 22 with electrical energy, the respective light source 22 can provide light or emit light. A person present in the interior 13 can visually perceive the light provided by the light sources 22.

[0025] From Fig. 1, using the example of one of the light sources 22, it can be seen that the respective light source 22 is at least partially arranged in a corresponding recess 24 in the pane 16. In the exemplary embodiments shown in Figures 1 and 2, the respective light source 22 is arranged completely in the respective, corresponding recess 24 in the pane 16. For example, the respective light source 22 is a light-emitting diode (LED). From Fig. 1, it can be seen that the respective recess 24 is a blind hole which does not completely penetrate the laminated glass pane 12, but only the pane 16. The respective recess 24 itself, that is to say viewed on its own, is open to the interior space 13 and thus at its respective end facing away from the film 18 and the pane 14.Thus, for example, the respective light source 22 can be moved over the open end of the respective, corresponding recess 24 into the respective, corresponding recess 24 and thus arranged in the respective, corresponding recess 24. The respective recess 24 is designed as a through-opening which completely penetrates the pane 16 and is thus, viewed on its own, open both at its respective end facing away from the film 18 and the pane 14 and at its respective end facing the film 18 and the pane 14. For example, the respective recess 24 is designed as a bore, i.e., formed by mechanically drilling the pane 16 into the pane 16.

[0026] In the exemplary embodiment shown in Figures 1 and 2, the respective light source 22 is connected to the pane 16 and thus to the laminated glass pane 12 by adhesive bonding. For this purpose, for example, the respective light source 22 is adhesively bonded, in particular directly, to the pane 16. In this case, it is particularly conceivable for the respective light source 22 to be adhesively bonded into the respective, corresponding recess 24 and thereby connected to the pane 16. The respective light provided or provideable by the respective light source 22 can be fed, i.e. coupled, into the pane 16 and, for example, via the pane 16 into the laminated glass pane 12, in order to subsequently illuminate the interior 13, for example using the light provided by the light sources 22. A correspondingly high number of light sources 22 can achieve an advantageously high illuminance.

[0027] From Fig. 1 it can be seen that the pane 16 is arranged on a respective inner side of the film 18 and the pane 14 facing the interior 13, so that the pane 16 is an inner pane, i.e. an internal pane. The pane 14 is arranged on a respective outer side of the film 18 and the pane 16 facing away from the interior 13, so that the pane 14 is an outer pane, i.e. an external pane, of the laminated glass pane 12. In particular, the film 18 serves as shatter protection, so that the laminated glass pane 12 is designed as laminated safety glass (VSG), i.e. as a laminated safety glass pane. The film 18, also referred to as a composite film, is preferably made of PVB (polyvinyl butyral). In particular, the panes 14 and 16 and the film 18 are connected to one another by lamination.The laminated glass pane 12 is thus a glass roof pane in composite construction with lighting technology, which is realized by the lighting device 10.

[0028] The respective recesses 24 per se lead to a weakening of the pane 16, so that the pane 16 is weakened by the recesses 24 to the greater the number of light sources 22 and thus the number of corresponding recesses 24.

[0029] In order to achieve particularly high robustness of the pane 16 and thus of the laminated glass pane 12 and, in particular, to be able to keep the fracture sensitivity of the pane 16 and thus of the laminated glass pane 12 particularly low, the pane 16 is provided with a coating 28 on its side 26 facing away from the film 18 and the pane 14 and facing the interior 13, also referred to as the inner side, which completely covers the recesses 24 and the light sources 22 towards the interior 13. In the exemplary embodiment shown in Figures 1 and 2, the coating 28 is a coating / material layer common to the light sources 22 and the recesses 24, in particular an uninterrupted and thus continuous coating / material layer, by which the light sources 22 and the recesses 24 are each completely covered towards the interior 13.In an alternative embodiment not shown in the figures, it is provided that the respective light source 22 and the respective corresponding recess 24 are assigned a respective, separate coating, also referred to as an individual coating, with which the pane 16 is provided on its inner side, wherein the respective light source 22 and the respective corresponding recess 24 are completely covered by the respective, assigned individual coating towards the interior space 13. In this case, for example, the individual coatings are not connected to one another, that is to say, in particular, they are completely spaced apart from one another.

[0030] From Fig. 1 it can be seen that the light source 22 is connected to a carrier element 30, which is also referred to as a light element carrier. The light source 22 can be supplied with the aforementioned electrical energy via the carrier element 30, by means of which the respective light source 22 can provide the light. In particular, the carrier element 30 has, for example, a line connection to which, for example, a line designed to conduct the electrical energy can be connected, in particular electrically and preferably also mechanically. As a result, the electrical energy can be supplied from the line to the line connection and via the line connection and via the carrier element 30 to the respective light source 22. In this case, the carrier element 30 is also covered, in particular completely, by the coating 28 towards the interior space 13.

[0031] The coating 28 directly contacts a first partial area T1 of the inside of the pane 16, and the coating 28 directly contacts a side S of the carrier element 30 facing the interior 13 and facing away from the film 18 and the pane 14, so that the partial area T1 and the side S toward the interior 13 are covered, in particular completely, by the coating 28.

[0032] The coating 28 advantageously reinforces the pane 16, so that the susceptibility to breakage of the pane 16 or of the laminated glass pane 12 as a whole can be advantageously kept low. The coating 28 is preferably formed from a plastic, which may be ethylene vinyl acetate (EVA). In this case, it is particularly conceivable for the coating 28 to be designed as a further film, provided in particular in addition to the film 18, which can preferably be formed from the aforementioned plastic, in particular from ethylene vinyl acetate. Alternatively, it would be conceivable for the coating 28 to be formed from a plastic foam, in particular from a polyurethane foam (PU).

[0033] 1 and 2 that the pane 16 is only provided with the coating 28 locally on its inner side. This means that the pane 16, in particular the side 26, is provided with the coating 28 in at least or exactly one first region B1, so that the region B1 towards the interior 13 is covered by the coating 28, wherein the pane 16, in particular the side 26, has at least or exactly one second region B2 which adjoins, in particular directly, the first region B1 and is free of the coating 28 and thus is not covered by the coating 28 towards the interior 13. In this way, a cost-effective and weight-effective reinforcement of the laminated glass pane 12 can be achieved by the coating 28.

[0034] In Fig. 2, a viewing area of ​​the laminated glass pane 12, also referred to as the see-through glass area, is designated SB. People in the interior 13 can visually perceive the viewing area SB and, in particular, look through the viewing area SB and thus, via the viewing area SB, look from the interior 13 to the surroundings 20. It can be seen from Fig. 2 that the coating 28 is arranged completely outside the viewing area SB, so that people in the interior 13 do not visually perceive the coating 28, i.e., cannot see it. This makes it possible to avoid an undesirable visual impairment. In particular, the first area B1 provided with the coating 28 adjoins the viewing area SB towards the outside in the transverse direction and / or longitudinal direction of the vehicle, so that, for example, the first area B1 provided with the coating 28 is a surrounding section of the pane.

Claims

Patent claims Arrangement of a lighting device (10) on a laminated glass pane (12) for a vehicle, said laminated glass pane having two panes (14, 16) and a film (18) arranged between the panes (14, 16), in which the lighting device (10) has at least one light source (22) which is arranged at least partially in a corresponding recess (24) of one of the panes (14, 16), characterized in that the light source (22) is connected to a carrier element (30) via which the light source (22) can be supplied with electrical energy and in that one pane (16) is provided locally, on its side (26) facing away from the other pane (14) and the film (18) and facing an interior of the vehicle, with at least one coating (28) covering the recess (24), the light source (22) and the carrier element. Arrangement according to claim 1, characterized in that the coating (28) is formed from a plastic.Arrangement according to claim 2, characterized in that the plastic is ethylene vinyl acetate. Arrangement according to one of the preceding claims, characterized in that the coating (28) is formed from a plastic foam. Arrangement according to one of the preceding claims, characterized in that the recess (24) is designed as a blind hole. Arrangement according to one of the preceding claims, characterized in that the light source (22) is connected to one pane (16) by adhesive bonding. Vehicle with an arrangement according to one of the preceding claims 1 to 6. Vehicle according to claim 7, characterized in that the coating (28) is arranged outside a viewing area (SB) of the laminated glass pane (12).Laminated glass pane (12) for a vehicle, comprising two panes (14, 16) and a film (18) arranged between the panes (14, 16), as well as a lighting device (10) with at least one light source (22), which is at least partially received in a corresponding recess (24) in one of the panes (14, 16), characterized in that the light source (22) is connected to a carrier element (30) via which the light source (22) can be supplied with electrical energy, and in that one pane (16), on its side (26) facing away from the other pane (14) and the film (18), is locally provided with at least one coating (28) covering the recess (24), the light source (22) and the carrier element.

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