DE102016222324A1 - Body roof element with integrated lighting - Google Patents

Abstract

A body roof element with integrated lighting, in particular for a vehicle, wherein the body roof element (2) has at least one translucent panel (20) which is provided on at least a portion of its peripheral edge (20 ') with at least one light coupling region (23 "). , 24 ", 25", 26 ", 27", 28 "), wherein at least one artificial light source in front of the at least one light coupling-in area (23", 24 ", 25", 26 ", 27", 28 ") (L) is arranged such that light emitted by it enters through the light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") into the transparent panel (20), wherein the translucent panel (20) 20) having at least one light outcoupling region (23 '' ', 24' '', 25 '' ', 26' '', 27 '' ', 28' '') is provided, which is formed so that the light Coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") coupled light through a light exit surface (23A, 24A, 25A, 26A, 27A, 28A) at an angle from a light exit surface (23A, 24A, 25A, 26 A, 27A, 28A) of the translucent panel (20) again, is characterized in that the translucent panel (20) with a plurality of light decoupling regions (23 '' ', 24' '', 25 '' ', 26 '' ', 27' '', 28 '' '), each of which is uniquely associated with a light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28"), so that there coupled light only from the associated light decoupling region (23 '' ', 24' '', 25 '' ', 26' '', 27 '' ', 28' '') emerges.

Description

TECHNICAL AREA

The invention relates to a body roof element with integrated lighting according to the preamble of patent claim 1. In particular, the invention relates to such a body roof element for a vehicle, such as a motor vehicle. Such a body roof element can form, for example, a panoramic roof. Furthermore, the invention relates to a vehicle, in particular a motor vehicle, with such a body roof element.

BACKGROUND OF THE INVENTION

For interior lighting in vehicles devices are known in which a introduced in the roof structure of a vehicle glass panel is used to illuminate the vehicle interior. For this purpose, LEDs or other light sources are installed along the edges of the glass panel. The light emitted by the light sources is refracted, deflected or reflected by structures in the glass panel towards the interior, thus providing illumination.

STATE OF THE ART

From the EP 1 346 178 B1 a sandwich-like plate member is known, which consists of at least two translucent plates, wherein between the plates or on at least one of the two plates solar cell elements are provided. In addition, a lighting device is provided, the light irradiates the end face in at least one of the plates, said irradiated light is deflected by a dot matrix on or false structures in the plate perpendicular to the direction of irradiation. These plate elements are provided, for example, as a facade of a building, wherein the daytime on the plate elements einstrahlende sun generated by the solar cell elements electric power and with this power in the dark, the lighting elements are fed so that behind the plate element, ie inside the building, both during the daytime as well as in the dark a substantially constant, surface lighting prevails.

From the US 9,397,075 B2 For example, an illuminated glass panel for a vehicle is known, this illuminated glass panel being part of a multi-layered glass roof tile. In the illuminated glass panel light is introduced from a front side means provided there lights. To decouple the light, decoupling structures are locally provided in the glass panel, which emit the light coupled in at the end side substantially perpendicular to the coupling-in direction from a surface of the glass sheet. Such coupling structures with correspondingly assigned lights can be provided at several points of the peripheral edge of the glass sheet and it can be provided accordingly at several locations of the glass sheet coupling-out. However, it is not excluded that light which is introduced into the glass panel via a first coupling structure is not only coupled out at the coupling-out structure assigned to it, but also exits from the glass panel at other coupling-out structures provided in the glass panel.

PRESENTATION OF THE INVENTION

Object of the present invention is to provide a generic body roof panel with integrated lighting, the lighting of passengers can be used without disturbing the driver of the vehicle.

This object is achieved with the features of patent claim 1.

This body roof element with integrated lighting, which is provided in particular for a vehicle, for example a motor vehicle, has at least one light-permeable panel which is provided with at least one light coupling-in region on at least a portion of its peripheral edges. At least one artificial light source is arranged in front of the at least one light-coupling region such that light emitted by it enters the light-transmissive panel at the light-coupling region. The translucent panel is provided on one of its surfaces with a light decoupling region, so that this surface forms a light exit surface. The light outcoupling region is designed such that light coupled in at the light coupling-in region exits from the transparent panel at an angle to the light exit surface. According to the invention, the body roof element is characterized in that on The peripheral edge of the translucent panel is provided a plurality of light-coupling areas, each light-coupling region is associated with at least one artificial light source for light coupling, and that the translucent panel is provided with a plurality of light outcoupling areas, each uniquely associated with a light coupling-in area are such that the light coupled there emerges only from the associated light decoupling.

ADVANTAGES

The inventively designed body roof panel allows both the illumination of individual interior areas, as well as the illumination of the entire interior. Since a plurality of light coupling-in areas are provided at the peripheral edge of the light-permeable panel, each light-coupling area being assigned at least one artificial light source for light coupling, both a more uniform overall illumination and the provision of targeted and highly effective individual light areas are made possible.

Further preferred and advantageous design features of the body roof element according to the invention are the subject of the dependent claims 2 to 10.

A particularly preferred development of the invention is characterized in that the translucent panel has at least one luminous area which is provided with at least one light coupling-in area and at least one associated light coupling-out area and in that the luminous area is light-proof with respect to the surrounding areas of the translucent panel is shielded. As a result, a clean demarcated local lighting of an interior area is achieved.

It is advantageous if the translucent panel has at least one translucent panel element which is inserted into a flat base element of the translucent panel, and that at least one light coupling-in area and at least one assigned light decoupling area are provided on the at least one translucent panel element. Such a modular construction of the translucent, illuminable panel makes it possible to standardize the production and thus to keep the manufacturing costs low.

The light decoupling region preferably has a light-refracting or light-deflecting structure and / or refractive or light-deflecting material.

A particularly preferred embodiment of the invention is characterized in that the translucent panel has at least one translucent panel element which is inserted into a planar base element of the translucent panel, and in that at least one light coupling panel and at least one associated light on the at least one translucent panel element -Ausoppelbereich are provided.

In this case, if the at least one translucent panel element is preferably formed at its peripheral edge outside the light entry region in such a way that no light can escape there into the planar basic element. This embodiment allows the provision of clearly limited lighting areas in the body roof element

It is also advantageous if the translucent panel has a plurality of translucent panel elements, each having at least one light coupling-in area and at least one light coupling-out area. For example, each seat in the vehicle can be assigned its own lighting area.

In an advantageous embodiment of the invention, the translucent panel is part of a multilayer structure of a panoramic roof, wherein the translucent panel on its side facing away from the respective light exit surface surface with a translucent outer panel sandwiched directly or indirectly, for example, with a plastic film between the panels connected is.

Preferably, the translucent panel is made of mineral or organic glass or has such a mineral or organic glass and is translucent or transparent.

It is particularly advantageous if the light sources assigned to the light coupling-in areas can be switched individually, in groups and / or jointly, whereby the variability of the use is increased.

If the panel elements are each at least partially formed as touch-sensitive button, by means of which the at least one associated light source is switchable, so it requires no additional mechanical switch, whereby the cost price can be reduced.

According to claim 11, the invention is also directed to a vehicle, in particular a motor vehicle, with a body roof element according to the invention.

Preferred embodiments of the invention with additional design details and other advantages are described below with reference to the accompanying drawings and described.

list of figures

• 1 einen Ausschnitt aus einem stilisierten Fahrzeug mit einem ein Panoramadach bildenden erfindungsgemäßen Karosserie-Dachelement;
• 2 das Karosserie-Dachelement aus 1;
• 3 eine erste Ausführungsform eines lichtdurchlässigen Tafelelements einer lichtdurchlässigen Tafel des Karosserie-Dachelements;
• 4 eine zweite Ausführungsform eines lichtdurchlässigen Tafelelements der lichtdurchlässigen Tafel des Karosserie-Dachelements und
• 5 eine dritte Ausführungsform eines lichtdurchlässigen Tafelelements der lichtdurchlässigen Tafel des Karosserie-Dachelements.

It shows:

• 1 a detail of a stylized vehicle with a panoramic roof forming body roof panel according to the invention;
• 2 the body roof element 1 ;
• 3 a first embodiment of a translucent panel member of a translucent panel of the body roof panel;
• 4 a second embodiment of a translucent panel member of the translucent panel of the body roof panel and
• 5 a third embodiment of a translucent panel member of the translucent panel of the body roof panel.

PRESENTATION OF PREFERRED EMBODIMENTS

1 Stylized depicts a motor vehicle 1 with a body 10 in the roof area 12 a panoramic roof 14 is used. This panoramic roof 14 can be stuck in the body 10 be installed or can be designed as a sunroof. Also, the panoramic roof 14 be formed in several parts, in which case at least a part forms a sliding roof element. This embodiment of panorama roofs is well known and will therefore not be described here.

The panoramic roof 14 is from the body roof panel according to the invention 2 formed, which is described below with reference to 2 is explained in more detail.

The body roof element 2 is sandwiched and has an upper, facing the body outside translucent outer panel 16 on, which consists of mineral or organic glass and with a turned to the vehicle interior translucent panel 20 directly connected, for example glued, is or indirectly via a translucent panel forming between the outer panel and an inner panel 20 provided translucent or transparent film is connected, thus forming a multilayer structure.

The translucent panel 20 has a planar primitive 22 on, in which several translucent panel elements 23 . 24 . 25 . 26 . 27 . 28 are used. These panel elements can, for example, as prefabricated elements in an injection mold for the translucent panel 20 inserted and with a flat primitive 22 plastic molding or they can in a corresponding recesses exhibiting primitive 22 be used. Alternatively, the translucent panel elements 23 . 24 . 25 . 26 . 27 . 28 during injection molding of the translucent panel 20 be produced such that during injection molding of the translucent panel 20 a first plastic material for the formation of the planar base element 22 and a second plastic material for forming the translucent panel members 23 . 24 . 25 . 26 . 27 . 28 is injected into a corresponding injection mold, wherein the plastic material for the planar base element 22 and the plastic material for the translucent panel elements have different refractive properties, for example a different refractive index. This allows the light pipe from the interior of the respective panel element 23 . 24 . 25 . 26 . 27 . 28 into the interior of the basic element 22 and vice versa be prevented.

The translucent panel elements 23 . 24 . 25 . 26 . 27 . 28 are in such a flat basic element 22 arranged that the outer peripheral edge 22 ' of the planar basic element 22 together with in each case at least one end face 23 ' . 24 ' . 25 ' . 26 ' . 27 ' . 28 ' the respective translucent panel member 23 . 24 . 25 . 26 . 27 . 28 the peripheral edge 20 ' the translucent panel 20 forms.

The respective faces 23 ' . 24 ' . 25 ' . 26 ' . 27 ' . 28 ' the translucent panel elements 23 . 24 . 25 . 26 . 27 . 28 each form a light coupling area 23 " . 24 " . 25 " . 26 " . 27 " . 28 " or have such. Immediately opposite to the respective light coupling-in area 23 " . 24 " . 25 " . 26 " . 27 " . 28 " is an associated electric light source L in the body roof panel 2 provided in the enlarged view of 3 only as an example as an LED row is shown schematically. Although in 3 the light source L at a distance from the light coupling-in area 24 " forming frontal side 24 ' of in 3 exemplified translucent panel element 24 is shown, constructed as an LED row light source L with its light exit surface also directly at the light-coupling region 24 " forming end face 24 ' issue. The one described here and in 3 shown arrangement of the light source L also applies to the other translucent panel elements 23 . 25 . 26 . 27 . 28 analogous to.

The respective translucent panel element 23 . 24 . 25 . 26 . 27 . 28 is with at least one light decoupling area 23 ''' . 24 ' . 25 ''' . 26 ''' . 27 ''' . 28 ''' provided by the associated light coupling region 23 " . 24 " . 25 " . 26 " . 27 " . 28 " in the interior of the respective panel element 23 . 24 . 25 . 26 . 27 . 28 initiated and there spreading light to the lower, the vehicle interior facing, large area of the respective panel element 23 . 24 . 25 . 26 . 27 . 28 deflects so that the light then passes through a light exit surface 23A . 24A . 25A . 26A . 27A . 28A from the respective translucent panel element 23 . 24 . 25 . 26 . 27 . 28 the translucent panel 20 exits again. The light exit surface 23A . 24A can, as in 1 and 3 is shown, over the entire lower large area of the panel element 23 . 24 extend or the light exit surface 25A . 26A . 27A . 28A can only cover a part of the lower large area of the associated panel element 25 . 26 . 27 . 28 take depending on where and how the associated light decoupling 25 ''' . 26 ''' . 27 ''' . 28 ''' on or in the associated panel element 25 . 26 . 27 . 28 is formed, as in the 4 and 5 is shown by way of example.

The respective light decoupling area 23 ''' . 24 ' . 25 ''' . 26 ''' . 27 ''' . 28 ''' is either from one to a surface of the associated panel element 23 . 24 . 25 . 26 . 27 . 28 formed screen-printed structure or other introduced into the surface structure or it are inside the respective panel member 23 . 24 . 25 . 26 . 27 . 28 deliberately introduced optical defects formed in the interior of the panel element 23 . 24 . 25 . 26 . 27 . 28 propagating light to the respective light exit surface 23A . 24A . 25A . 26A . 27A . 28A to distract.

The inner, the basic element 22 directed and adjacent to this peripheral edges 23B . 24B . 25B . 26B . 27B . 28B the panel elements 23 . 24 . 25 . 26 . 27 . 28 are preferably designed so that on them a total reflection of the inside of the panel element 23 . 24 . 25 . 26 . 27 . 28 spreading light takes place, so that the light does not enter the basic structure 22 can occur. Alternatively or additionally, the corresponding edges of the basic element can also be used 22 to which the inner peripheral edges 23B . 24B . 25B . 26B . 27B . 28B the panel elements 23 . 24 . 25 . 26 . 27 . 28 adjoin, be formed in this way. For example, the primitive 22 and the panel elements 23 . 24 . 25 . 26 . 27 . 28 consist of different materials, as already described, or the respective edges on the panel element 23 . 24 . 25 . 26 . 27 . 28 and / or at the primitive 22 may be provided with an appropriate coating or color, for example, be colored black or mirrored. In this way it is particularly reliably ensured that the light source L in the respective panel element 23 . 24 . 25 . 26 . 27 . 28 not coupled light into the primitive 22 penetrates, but only via the light decoupling 23 ''' . 24 ' . 25 ''' . 26 ''' . 27 ''' . 28 ''' the associated panel element 23 . 24 . 25 . 26 . 27 . 28 from the corresponding panel element 23 . 24 . 25 . 26 . 27 . 28 and thus from the translucent panel 20 exit.

The invention enables both the illumination of individual interior areas, as well as the entire interior.

For this purpose, for example, at certain points in the (mineral or organic) glass of the translucent panel 20 a panoramic roof 14 refractive structures or other refractive plastic by a 2-K injection molding process, introduced. These refractive structures are seen from the side of the translucent panel 20 illuminated LEDs and deflect the light towards the interior. Since the LEDs can be controlled in groups or individually, it is possible to select which segments of the translucent panel as required 20 , ie which panel elements 23 . 24 . 25 . 26 . 27 . 28 , to be illuminated.

The segments are preferably formed separately from the rest of the glass or plastic surface so that the light coupled into a panel element does not bring other panel elements to shine, so for example the light illuminating the driver's seat does not partially illuminate the passenger seat.

The occupants can advantageously turn on and off the lighting in the desired vehicle interior areas by touching the light decoupling areas in which, for example, refractive segments are installed. The contact is detected by touch-sensitive sensors.

• - es wird ein angenehmes indirektes Licht abgegeben;
• - der beleuchtete Fahrzeug-Innenraumbereich ist je nach Bedarf auswählbar und
• - es wird ein ansprechenderes Fahrzeug-Innenraumdesign durch Wegfall von herkömmlichen Innenraumleuchten erzielt.

The body roof element according to the invention has the following special advantages:

• - it gives a pleasant indirect light;
• - The illuminated vehicle interior area is selectable as needed and
• - It is achieved a more appealing vehicle interior design by eliminating conventional interior lights.

The invention is not limited to the above embodiment, which merely serves to generally explain the essence of the invention. Within the scope of protection, the device according to the invention may also assume other than the above-described embodiments. In this case, the device may in particular have features that represent a combination of the respective individual features of the claims.

Reference signs in the claims, the description and the drawings are only for the better understanding of the invention and are not intended to limit the scope.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1346178 B1 [0003]
• US 9397075 B2 [0004]

Claims (11)

Body roof element with integrated lighting, in particular for a vehicle, wherein the body roof element (2) has at least one translucent panel (20) which is provided on at least a portion of its peripheral edge (20 ') with at least one light coupling-in area (23 ", 24 ", 25", 26 ", 27", 28 "), wherein at least one artificial light source (23", 24 ", 25", 26 ", 27", 28 ") is provided in front of the at least one light coupling region (23). L) is arranged such that light emitted by it enters through the light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") into the translucent panel (20), the translucent panel (20 ) is provided with at least one light decoupling area (23 ''',24''', 25 ''',26''', 27 ''',28''') which is designed such that at the light Coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") coupled light through a light exit surface (23A, 24A, 25A, 26A, 27A, 28A) at an angle from a light exit surface (23A, 24A, 25A , 26A, 2 7A, 28A) of the translucent panel (20), characterized in that the translucent panel (20) is provided with a plurality of light decoupling areas (23 ''',24''', 25 ''',26''' , 27 ''',28'''), which are each assigned to a light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") unambiguously, so that the light coupled there only off the associated light decoupling region (23 ''',24''', 25 ''',26''', 27 ''',28''') emerges. Body roof element after Claim 1 , characterized in that the translucent panel (20) has at least one luminous section which is provided with at least one light coupling-in region (23 ", 24", 25 ", 26", 27 ", 28") and at least one associated light coupling-out region (US Pat. 23 ''',24''', 25 ''',26''', 27 ''',28''') is provided and that the luminous portion with respect to the surrounding portions of the translucent panel (20) shielded against light leakage is. Body roof element after Claim 2 characterized in that the at least one luminous portion of the translucent panel (20) is formed by a translucent panel member (23, 24, 25, 26, 27, 28) inserted into a planar base member (22) of the translucent panel (20) and that the at least one light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") and the at least one assigned light coupling-out area (23 ''',24''', 25 ''',26''', 27 ''',28'''). Body roof element after Claim 3 , characterized in that the at least one translucent panel member (20) at its peripheral edge (20 ') outside the light-entry region (23 ", 24", 25 ", 26", 27 ", 28") is formed so that there no light can escape into the planar basic element (22). Body roof element after Claim 3 or 4 , characterized in that the translucent panel (20) comprises a plurality of translucent panel elements (23, 24, 25, 26, 27, 28) each having at least one light coupling-in area (23 ", 24", 25 ", 26", 27 ", 28") and at least one light decoupling region (23 ''',24''', 25 ''',26''', 27 ''',28'''). Body roof element according to one of the preceding claims, characterized in that the light decoupling region (23 ''',24''', 25 ''',26''', 27 ''',28''') is a refractive or light-deflecting structure and / or refractive or light-deflecting material. A body roof panel according to any one of the preceding claims, characterized in that the translucent panel (20) is part of a multi-layered structure of a panoramic roof (14) formed by the body roof panel (2), the translucent panel (20) being at its respective one Light exit surface (23A, 24A, 25A, 26A, 27A, 28A) facing away from the surface with a translucent outer panel (16) is sandwiched directly or indirectly connected. Body roof element according to one of the preceding claims, characterized in that the translucent panel (20) consists of or comprises mineral or organic glass and is translucent or transparent. Body roof element according to one of Claims 2 to 8th , characterized in that the light sources (L ') associated with the light coupling-in areas (23 ", 24", 25 ", 26", 27 ", 28") can be switched individually, in groups and / or jointly. Body roof element according to one of Claims 6 to 9 , characterized in that the panel elements (23, 24, 25, 26, 27, 28) are each at least partially formed as touch-sensitive buttons or have such by means of which at least one associated light source (L) is switchable. Vehicle, in particular motor vehicle, with a body roof element (2) according to one of the preceding claims.

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