CN113859108A

CN113859108A - Vehicle with a lighting device in the region of a flap and component of a lighting device

Info

Publication number: CN113859108A
Application number: CN202110660404.3A
Authority: CN
Inventors: C.沃沃德; C.斯图德尼
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2020-06-30
Filing date: 2021-06-15
Publication date: 2021-12-31
Also published as: DE102020208105A1

Abstract

The invention relates to a vehicle having at least one lighting device (1) in the region of a flap (3). A first part (1a) of the lighting device (1) is connected to a stationary vehicle body, and a second part (1b) of the lighting device (1) is connected to a flap of the vehicle. Each component (1a, 1b) has at least one flat luminous body (30) and at least one luminous element (40), the light radiation of which can be emitted into a lateral surface of the luminous body (30). The incident light radiation can also be emitted outward via a light exit surface which is surrounded by lateral surfaces of the luminous body. At least a part of the lateral surface is covered by a frame-like member (10). At least one luminous body (30) of the first part (1a) of the lighting device (1) is adjacent to a luminous body (30) of the second part (1b) of the lighting device (1), wherein mutually facing sides of the frame-shaped members (10) of the two luminous bodies (30) project into the recesses (102a, 102b), respectively. The recesses (102a, 102b) are formed by housing walls (100a, 100b) of a first part (1a) and a second part (1b) of the lighting device (1), respectively.

Description

Vehicle with a lighting device in the region of a flap and component of a lighting device

Technical Field

The invention relates to a vehicle having at least one lighting device in the region of a flap, having the features of the preamble of claim 1. The invention also relates to a component of a lighting device for a vehicle, having the features of the preamble of claim 10.

Background

A vehicle of this type and components of a lighting device of this type are known from the document DE 102018215988 a1 of the applicant. In particular, a tail illumination is described in this document, which consists of a first component and a second component. The first part of the lighting device is connected to the stationary body and the second part of the lighting device is connected to the rear cover of the vehicle. These two components of the lighting device are arranged adjacent to one another and are separated from one another only by a seam, which is formed by the vehicle body and the rear cover. In each component of the lighting device, flat luminous bodies are present, which are each encased in a frame-like component and are arranged next to and/or on top of one another. By means of the lighting device, a very impressive appearance of the vehicle can be achieved.

Disclosure of Invention

The object of the invention is to further improve the appearance of such vehicles. Another object of the invention is to provide a component for a lighting device of a vehicle, which provides the prerequisite for improving the appearance of a vehicle equipped with a component of a lighting device of this type.

The object is achieved by a vehicle having the features of claim 1 and by a component of a lighting device having the features of claim 10. Advantageous embodiments or further developments of the invention are indicated by the respective dependent claims.

The invention relates to a vehicle with at least one lighting device in the region of a flap. The first part of the lighting device is connected to a stationary body of the vehicle, and the second part of the lighting device is connected to a flap of the vehicle. Each component of the lighting device has at least one flat luminous body (or light guide) and at least one luminous element (or light means), the light radiation of which can be injected or injected into a lateral surface of the luminous body or in other words into an edge surface of the luminous body. Furthermore, the incident light radiation can also be emitted outward through the light exit surface enclosed by the lateral surfaces of the luminous body or in this way. At least a portion of the lateral face is covered by a frame-like member.

The invention provides that at least one luminous body of the first part of the lighting device is adjacent to a luminous body of the second part of the lighting device. The mutually opposite sides of the frame-like components of the two luminous bodies each project into a recess which is formed by a housing wall of the first and second part of the lighting device.

In this way, a precondition is provided for the appearance of the lighting device, in particular in the region of the joint between the vehicle body and the flap, to be able to be further improved. In particular, the distance formed in the joint region of adjacent luminous bodies can be reduced by the frame-like component protruding into the respective recess.

In a further development of the invention, it is provided that the recesses are offset from one another by a distance, as viewed in the longitudinal direction of the vehicle. In this way, a three-dimensional appearance of the lighting device can also be formed in the region of the seam.

In this case, according to a further advantageous embodiment of the inventive concept, it is provided that the recess of the housing wall of the second part of the lighting device is offset further in the light radiation direction of the lighting device than the recess of the housing wall of the first part of the lighting device. This may be advantageous for special optical effects of the lighting device.

According to a further advantageous development of the invention, each recess is formed as a projection on the outside of the housing wall. With a development of this type, it can be ensured that the housing of the lighting device has sufficient stability in the region of the recess.

Alternatively, it is also conceivable that the recess is realized by a material thinning of the housing wall in this region.

In terms of compactness, it is very advantageous if a circuit board is assigned to each of the two luminous bodies, on which circuit board at least one luminous element is located. The circuit board is arranged with its surface extension vertically and projects from the rear side into the frame-like component.

In this way, the distance between adjacent luminous bodies can be further reduced if the printed circuit board projects into the frame element on the side of the frame element facing away from the recess or, in other words, arranged remote from the recess.

It is very advantageous to form a distinctive and thus symbolic appearance that at least a part of the frame-like members are arranged such that they constitute overlapping areas in a viewing angle of the lighting device viewed against the light radiation direction of the lighting device.

This type of appearance can thus be further enhanced when the overlapping areas are configured to form a fan-like structure. The fan-like structure is designed such that, viewed against the light radiation direction of the lighting device, the frame-like component further inside in the transverse direction of the motor vehicle overlaps the adjacent frame-like component further outside in the transverse direction of the motor vehicle on the front side of said further inside frame-like component. As reference plane for the positional expressions "further inward" and "further outward", an imaginary, longitudinal median plane of the vehicle shall be used here.

Advantageously, at least some of the luminous bodies can be arranged offset to one another in the transverse direction of the vehicle and/or in the height direction.

As mentioned before, the invention should also be used to provide a component of a lighting device for a vehicle. The components of this type of lighting device have a housing in which a flat luminous element and at least one luminous element are accommodated, the light radiation of which can be injected into the lateral surfaces of the luminous element.

"flat" is intended to mean, within the scope of the invention, that the luminous body has planar extensions which extend in two mutually perpendicular directions and which are several times greater than the thickness of the luminous body in any direction.

The incident light radiation can also be emitted outward or in this way via a light exit surface surrounded by lateral surfaces of the luminous body. Here, at least a part of the lateral surface is covered by a frame-like member.

According to the invention, the frame-like component on the side surface protrudes into a recess, which is formed by a housing wall of the housing of the lighting device.

By means of the component of the lighting device of this type, basic preconditions are provided for enabling further improvement of the appearance of a vehicle equipped with the component of the lighting device of this type.

In order to increase the stability in the region of the recess, it is provided that the recess is formed as a projection on the outer lateral surface of the housing wall.

According to a further development of the lighting device, the luminous body is provided with a circuit board, on which at least one luminous element is arranged. The circuit board is arranged vertically with its planar extension in an assumed assembly position of the components of the lighting device on the vehicle and projects from the rear side into the frame-like component. The circuit board projects into the frame-like component, in particular on the side facing away from the recess.

This provides the prerequisite for a further reduction in the distance between the luminous bodies when two such components of the lighting device are used in the seam region between the flap and the body of the vehicle.

In a very advantageous embodiment of the inventive concept, the light-scattering impurities (or lattice defects) are arranged in a dispersed manner in at least one part of the illuminant. In this way, a certain degree of scattering of the light radiation input into the luminous body is achieved, which leads to an improvement of the homogeneous light radiation of the lighting device. In the portion of the luminous body, the impurities that scatter light are not only arranged on the surface of the luminous body, but are also dispersedly arranged within the luminous body. Thereby, impurities that scatter light shield external influences and maintain a desired scattering effect for a long time.

It is particularly expedient here for the part of the luminous body having the light-scattering impurities to have a transmission of about 85 to about 95 percent, preferably about 90 percent.

Drawings

Preferred embodiments of the invention are shown in the drawings and are set forth in detail in the following description in view of the drawings. Other advantages of the invention may thus also be explained. The same reference numbers refer to identical, comparable or functionally identical components, even in different figures. Corresponding or comparable properties and advantages are achieved here even if no repeated description or reference is made. The figures are not, or at least not always, drawn to scale. The proportions and distances may be exaggerated in some of the figures to more clearly highlight features of the embodiments.

In the drawings, which are each schematically:

figure 1 shows the lighting device in the region of a rear flap of a vehicle viewed against the light radiation direction of the lighting device,

FIG. 2 shows a sectional view cut according to section line II of FIG. 1;

figure 3 shows a detail area from detail III of figure 2,

FIG. 4 shows an exploded view of the light emitter and the frame-like member, and

fig. 5 shows a sectional view taken along section line V of fig. 4, however in an assembled state.

Detailed Description

Reference is first made to fig. 1 below. Fig. 1 shows a part of a vehicle K in the region of an illumination device 1 embodied as a left-hand rear light. The right-hand rear vehicle lamp (not shown) is correspondingly embodied mirror-symmetrically.

In contrast to this exemplary embodiment, the illumination device according to the invention can also be designed differently, for example as a headlight.

The lighting device 1 comprises a first part 1a encased in the body 2 and a second part 1b encased in the flap 3, i.e. in the rear bonnet of the vehicle K.

As shown, the

parts

1a, 1b of the lighting device 1 are separated from each other by a seam 4 existing between the vehicle body 2 and the shutter 3.

In this and the following figures, the vehicle longitudinal axis is denoted by X, the vehicle transverse axis is denoted by Y, and the vehicle height axis is denoted by Z.

Each

component

1a, 1b of the lighting device 1 has a plurality of flat luminous bodies 30, which are each encased in a frame-like component 10.

In particular, the first part 1a of the lighting device 1 has two luminous bodies 30, each with a frame-like member 10, while the second part 1b of the lighting device 1 has three flat luminous bodies 30, each with a frame-like member 10.

It is shown here that the frame-shaped components 10 are arranged relative to one another in such a way that overlapping regions are formed between two adjacent frame-shaped components 10 in each case

As is particularly clear from fig. 2, the frame-like component 10 is arranged in a fan-like manner with the flat luminous body 30 located therein.

In other words, with respect to an imaginary vehicle vertical plane, the frame-like members 10 further inward in the vehicle lateral direction Y overlap with the frame-like members 10 further outward in the vehicle lateral direction Y on the front side of the further outward frame-like members 10.

In order to optimize the visual appearance of the lighting device 1 viewed against the light radiation direction LA in the region of the seam 4, a special configuration is selected in this region, which configuration will be described in more detail below.

In fig. 2, the vehicle body 2 and the flap 3 are not shown again for the sake of simplicity, and as shown in fig. 2, the first part 1a of the lighting device 1 is formed by a housing G with a housing wall 100a, and the second part 1b is formed by a housing G with a housing wall 100 b. The housings G of the

components

1a, 1b are covered by

light panels

101a, 101b, respectively, in the light radiation direction LA.

It has been shown according to fig. 2 that each light emitter 30 is surrounded by a frame-like member 10. On the rear side of the frame-like component 10, in each case a printed circuit board 20 is inserted from the rear, which is inserted into the frame-like component 10 through an opening not specifically designated here.

Each printed circuit board 20 has a luminous element 40, which is preferably designed as a light-emitting diode and into which light radiation can be emitted from the edge, i.e. through the lateral surface of the luminous element 30.

In the region of the seam 4, the

housing walls

100a, 100b have

recesses

102a, 102b, respectively. In this case, the adjacent frame-like components 10 project partially into the

recesses

102a, 102 b.

It is also shown that in two adjacent frame-like components 10, the light incidence of the luminous element 40 is effected on the side of the frame-like component 10 or the luminous element 30 facing away from (i.e. facing away from) the

recess

102a or 102b, respectively.

In this way, the introduction of adjacent luminous bodies 30 can be further facilitated even if a seam 4 is present.

The circuit boards 20 are introduced into the frame-like members 10 from the back side, respectively, even in the case where other frame-like members 10 exist. The circuit board 20 is preferably bendable in design, so that it can perform a 90-degree bend as shown in fig. 2. It is also conceivable for circuit board 20 to be designed as a film-like, flexible circuit board. This also contributes to a further compact construction of the

components

1a, 1b of the lighting device 1.

The region of the

recesses

102a, 102b is shown particularly clearly in fig. 3. Preferably, the frame-like framework 10 preferably projects into the

recesses

102a, 102b, respectively, to such an extent that the lateral edges of the window-like opening 17 on the front side do not project beyond the

housing wall

100a or 100b, at most ending approximately flush with this housing wall.

In the figure, it is also shown that adjacent luminous bodies 30 are offset from one another by a distance a along the longitudinal axis X of the vehicle in the region of the joint 4. In particular, the luminous bodies 30 located further toward the vehicle interior in the vehicle transverse direction Y are offset further in the direction of the light emission direction LA than the luminous bodies 30 located further toward the vehicle exterior in the vehicle transverse direction Y.

The stereoscopic impression of the lighting device 1 can thereby also be enhanced beyond the seam 4.

The

recesses

102a, 102b again form correspondingly shaped

elevations

103a, 103b on the outer side of the

housing walls

100a, 100 b. The material thinning may thus be omitted in the region of the

recesses

102a, 102b, but may also be considered in addition to or as an alternative to the

projections

103a, 103 b.

The

housing walls

100a, 100b also have thickened

portions

104a, 104b on the ends, in which thickened

portions grooves

105a, 105b can be provided.

The end-

side thickenings

104a, 104b or, if present, the

groove sections

105a, 105b serve for the application of

ribs

106a, 106b for welding the

light panels

101a, 101b to the

housing walls

100a, 100b by laser welding in a welding process (not shown).

The frame-like component 10 and the arrangement of the flat luminous body 30 in the seam 4 are shown in an exploded view in a separate view according to fig. 4.

It is thus conceivable for the luminous body 30 to be embodied flat with surface extensions F which are several times larger than the dimension of the thickness d of the luminous body 30 in mutually perpendicular directions.

The luminous body 30 has a light exit surface 35, the surface normal of which points in the light radiation direction LA. The light exit face 35 is surrounded by the lateral faces 31, 32, 33 and 34.

On the left side of the luminous body 30 in the figure, the circuit board 20 with the luminous element 40 is partially shown.

The frame-like member 10 has

side walls

11, 12, 13 and 14. Furthermore, the lower side wall 14 is provided with an elongated opening 15 (shown in dashed lines) which is configured such that the frame-like member 10 can be moved over the luminous body 30 by the assembly movement B.

The frame-like member 10 also has a window-like opening 17 on the front side (see also fig. 3). The window-like opening 17 may in turn be divided by one or more horizontally and/or vertically extending webs 18 (shown in dashed lines).

Finally, the state in which the combination is completed is shown in fig. 5. Here, the printed circuit board 20 is shown introduced into the frame-like component 10 from the rear side, then guided along its rear wall 16 and subsequently introduced into the frame-like component 10 through the opening 19 of the rear side.

It is also shown that the light radiation L formed by the luminous element 40 can be injected or injected into the luminous element 30 via the lateral surface 33, i.e. from the edge.

At least a part of the luminous body 30 is provided in its interior with a scattered, light-scattering impurity 38. The impurities 38 can be introduced into the illuminant 30, for example, by means of a laser.

The impurities 38 cause scattering of the injected light radiation L, so that a very homogeneous illumination effect can be achieved in the light radiation direction LA.

The inner, rear surface 16a of the frame-like component 10 and/or the rear surface 36 of the luminous body 30 can be designed in a reflective manner. This can be achieved, for example, by a corresponding coating (not shown), preferably by a metal coating.

List of reference numerals

1 Lighting device

1a parts of lighting devices

1b parts of a lighting device

2 vehicle body

3, a valve; vehicle rear cover

4 seaming

10 frame-like member

11 side wall

12 side wall

13 side wall

14 side wall

15 opening

16 rear wall

16a are located on the inner surface

17 window-like openings

18 lintel

19 opening

20 circuit board

30 flat luminous body

31 lateral surface

32 lateral surface

33 lateral surface

34 lateral surface

35 light exit surface

36 back side surface

38 impurities

40 luminous element

100a, b housing wall

101a, b light panel

102a, b grooves

103a, b are convex

104a, b thickening

105a, b groove parts

106a, b ribs

a distance between

B fitting movement

d thickness

F surface extension

G shell

K vehicle

L-ray radiation

Overlapping area

Longitudinal axis of vehicle

Y vehicle transverse axis

Z vehicle height axis

Claims

1. A vehicle (K) having at least one lighting device (1) in the region of a flap (3), wherein a first part (1a) of the lighting device (1) is connected to a body (2) of the vehicle (K) which is stationary and a second part (1b) of the lighting device (1) is connected to the flap (3) of the vehicle (K), wherein each part (1a, 1b) of the lighting device (1) has at least one flat luminous body (30) and at least one luminous element (40) whose light radiation (L) can be emitted into or into a lateral surface (33) of the luminous body (30), wherein the emitted light radiation (L) can be emitted or emitted outward via a light exit surface (35) which is surrounded by lateral surfaces (31, 32, 33, 34) of the luminous body (30), and wherein at least a part of the lateral surfaces (31, 34), 32. 33, 34) are covered by a frame-like member (10), characterized in that at least one luminous body (30) of the first part (1a) of the lighting device (1) is adjacent to a luminous body (30) of the second part (1b) of the lighting device (1), wherein mutually facing sides of the frame-like members (10) of the two luminous bodies (30) project into recesses (102a, 102b), respectively, which are formed by housing walls (100a, 100b) of the first part (1a) and the second part (1b) of the lighting device (1), respectively.

2. Vehicle (K) according to claim 1, characterised in that the grooves (102a, 102b) are mutually offset by a distance (a) as seen along the longitudinal axis (X) of the vehicle (K).

3. Vehicle (K) according to claim 2, characterized in that the recess (102b) of the housing wall (100b) of the second part (1b) of the lighting device (1) is offset further in the direction of the light radiation direction (LA) of the lighting device (1) than the recess (102a) of the housing wall (100a) of the first part (1a) of the lighting device (1).

4. Vehicle (K) according to one of the preceding claims, characterised in that each recess (102a, 102b) is configured as a projection (103a, 103b) on the outside of the housing wall (100a, 100b), respectively.

5. Vehicle (K) according to one of the preceding claims, characterised in that a circuit board (20) is associated with each of the two luminous bodies (30), on which circuit board at least one luminous element (40) is located, wherein the circuit board (20) is arranged vertically with its surface extension and is guided into the frame-like component (10) from the rear side.

6. Vehicle (K) according to claim 5, characterised in that the circuit board (20) is guided on the side of the frame-like component (10) facing away from the recesses (102a, 102 b).

7. Vehicle (K) according to one of the preceding claims, characterized in that at least a part of the frame-like members (10) are arranged such that they constitute an overlapping area in a viewing angle of the lighting device (1) against a light radiation direction (LA) of the lighting device

8. Vehicle (K) according to claim 7, characterised in that said overlapping areas

Is designed to form a fan-shaped structure, wherein, viewed against the light radiation direction (LA) of the lighting device (1), the frame-shaped component (10) that is further inside in the vehicle transverse direction (Y) overlaps the adjacent frame-shaped component (10) that is further outside in the vehicle transverse direction (Y) on the front side of the further inside frame-shaped component (10).

9. Vehicle (K) according to one of the preceding claims, characterized in that at least a part of the luminous bodies (30) are arranged offset to one another in the transverse direction of the vehicle (K) and/or in the height direction (Y and/or Z).

10. A component (1a, 1b) for a lighting device (1) of a vehicle (K), having a housing (G) in which at least one flat luminous body (30) and at least one luminous element (40) are accommodated, the light radiation (L) of which can be radiated into or into lateral surfaces (33) of the luminous body (30), wherein the radiated light radiation (L) can be radiated or emitted outward via a light exit surface (35) surrounded by the lateral surfaces (31, 32, 33, 34) of the luminous body (30), and wherein at least a part of the lateral surfaces (31, 32, 33, 34) is covered by a frame-shaped member (10), characterized in that the frame-shaped member (10) projects laterally into a recess (102a, 102b) which passes through a portion (100a ) of the housing (G) of the lighting device (1a, 1b), 100b) And (4) forming.

11. Component (1a, 1b) of a lighting device (1) according to claim 10, characterized in that the recess (102a, 102b) is configured as a bulge (103a, 103b) on the outside of the housing wall (100a, 100 b).

12. Component (1a, 1b) of a lighting device (1) according to one of the preceding claims 10 or 11, characterized in that a circuit board (20) is assigned to the luminous body (30), on which circuit board at least one luminous element (40) is located, wherein the circuit board (20) is arranged vertically with its surface extension in an imaginary fitted state of the component (1a, 1b) and is introduced into the frame-like member (10) from the rear side, wherein the circuit board (20) is introduced on the side of the frame-like member (10) facing away from the recess (102a, 102 b).

13. Component (1a, 1b) of a lighting device (1) according to any one of the preceding claims, characterized in that a light-scattering impurity (38) is dispersedly arranged in at least a part of the luminous body (30).

14. Component (1a, 1b) of a lighting device (1) according to claim 13, characterized in that the part of the luminous body (30) having the impurity (38) scattering light has a transmittance of about 85% to about 95%, preferably a transmittance of about 90%.