CN215850676U - Light emitting device for sunroof - Google Patents

Abstract

The utility model discloses a light-emitting device for a skylight, which comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein the light guide layer is arranged on the light guide layer; the first surface of the light guide layer is provided with a pattern layer, and the opposite second surface is provided with a reflecting layer; the light-emitting module comprises a plurality of light-emitting elements and a limiting block; the light emitting module is arranged on the fixed pressing strip and then is arranged on the surface of the automobile skylight together with the light guide layer; the light emitting element emits light which is reflected by the reflecting layer and passes through the pattern layer to display a luminous pattern.

Description

Light emitting device for sunroof

Technical Field

The utility model relates to a light-emitting device which is arranged on the surface of automobile skylight glass to create atmosphere.

Background

A sunroof is a device commonly installed in an automobile, which can provide good ventilation inside and outside the automobile when the sunroof is opened, or can allow a passenger to expose his body outside the automobile to enjoy good air in the countryside, and people also want to enjoy the night sky when the sunroof is closed. Therefore, in order to create an atmosphere in a vehicle to improve driving experience, the atmosphere lamp technology is applied to the sunroof of the vehicle, which is widely applied to the sunroof of the medium and high-grade vehicle.

For example, chinese patent CN107471978A discloses a luminous window glass; chinese patent CN109624837B discloses a skylight glass for adjusting atmosphere in a vehicle; chinese patent CN103770696B discloses a vehicle glazing. Chinese patent CN107471978A discloses window glass that can give out light, including the first transparent plate that top-down stacked gradually, first transparent bonding layer, flexible transparent base, second transparent bonding layer and second transparent plate, the refracting index of second transparent bonding layer is the same with the refracting index of second transparent plate, the refracting index of second transparent bonding layer is greater than the refracting index of flexible transparent base, the side reason of second transparent plate is equipped with linear light source, make the incident light of linear light source from the side reason incidence of second transparent bonding layer and/or second transparent bonding layer, and guide and transmit between second transparent plate and second transparent bonding layer, the lower surface of flexible transparent base is equipped with the diffusion layer that is used for the incident light of scattered ray form light source. Chinese patent CN109624837B discloses a skylight glass for adjusting atmosphere in car, including the first glass board that top-down stacked gradually, the adhesion layer, flexible lamina layer and second glass board, arrange the light source at the second glass board side, the refracting index of second glass board is greater than the refracting index on flexible lamina layer, the lower surface on flexible lamina layer is equipped with reflection of light pattern, the border on flexible lamina layer inwards contracts 3 ~ 30mm for the border of second glass board, the adhesion layer seals the flexible lamina layer of cladding with the second glass board jointly, flexible lamina layer lower surface hugs closely on the upper surface of second glass board. The reflecting patterns are directly arranged on the flexible sheet body layer, so that the reflecting patterns can be better attached to the glass with small curvature and large arch height, the lower surface of the flexible sheet body layer is tightly attached to the upper surface of the second glass plate, and the reflecting patterns are directly contacted with the upper surface of the second glass plate. Chinese patent CN103770696B discloses a vehicle glazing comprising a glass plate, a light guiding layer, a refraction layer and a light source; the light-guiding layer is provided for guiding light coupled in at its end faces and has a coupling-out device by means of which the guided light is optically output on at least one main face of the light-guiding layer; the light guide layer is connected with the glass plate material in a locking manner; the refractive layer is arranged between the glass plate and the light guide layer, the refractive layer has a lower refractive index than the light guide layer, and the refractive layer is simultaneously configured as a sheet-type layer; the light source is arranged to be optically coupled in at least one end face of the light guiding layer.

A common feature of the above-described plurality of published patent documents is that none of them is provided with a structure for protecting the light emitting element so that the light emitting element is easily damaged by collision at the time of assembly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a light-emitting device for a skylight.

The utility model aims to solve the problem that the prior skylight lighting device is not provided with a structure for protecting a lighting element, so that the lighting element is easily damaged by collision during assembly. The light-emitting device suitable for being installed on the automobile skylight glass can prevent the light-emitting element from being damaged by collision when the light-emitting device is assembled on the skylight due to the structure for protecting the light-emitting element.

In order to solve the technical problems, the utility model adopts the technical scheme that: a light-emitting device for a skylight comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein a pattern layer is arranged on a first surface of the light guide layer, the pattern layer is composed of a plurality of concave holes capable of reflecting and refracting light, a reflecting layer is arranged on a second surface opposite to the first surface of the light guide layer, and a first adhesive layer is further arranged around the first surface; the light-emitting module comprises a printed circuit board, a light-emitting element and a limiting block, wherein the light-emitting element is arranged on the printed circuit board and used for emitting light, and the limiting block is closer to one side edge of the printed circuit board than the light-emitting element; the fixing pressing strip is used for providing the light-emitting module arranged on the fixing pressing strip, so that the light incident edge of the light guide layer contacts the limiting block and is adjacent to the light-emitting element, and a second bonding layer is further arranged on the fixing pressing strip; the light guide layer is fixed on the surface of the skylight through the first adhesive layer, and the fixing pressing strip is fixed on the surface of the skylight through the second adhesive layer.

Preferably: the light-emitting elements arranged on the printed circuit board are multiple, and the limiting blocks arranged on the printed circuit board are multiple.

Preferably: the pattern layer is formed by a plurality of concave holes formed on the first surface of the light guide layer through laser engraving or stamping.

Preferably: the plurality of light emitting elements are arranged in a straight line on the printed circuit board, and each of the stoppers is disposed between a part of adjacent two of the light emitting elements.

Preferably: the upper surface of fixed layering is formed with first bulge and second bulge, first bulge with form the depressed part between the second bulge, the bottom surface of depressed part is equipped with the third bonding layer, printed circuit board is fixed in through the third bonding layer the bottom surface of depressed part

The utility model has the beneficial effects that: the light-emitting device can display a light-emitting pattern by controlling the light-emitting element to emit light after being installed on the automobile skylight glass, and the light-emitting element in the light-emitting module can be properly protected from collision damage during the installation process on the skylight glass.

Drawings

FIG. 1 is a schematic view showing a state where the present invention is mounted on a sunroof glass;

FIG. 2 is a partial perspective view of the structure of the present invention;

FIG. 3 is a plan cross-sectional exploded view of the combination of elements included in the present invention;

FIG. 4 is a plan cross-sectional view of the composite structure of the present invention;

FIG. 5 is a schematic partial plan view illustrating a configuration relationship between a light emitting device and a stopper according to the present invention;

FIG. 6 is a schematic cross-sectional side view of a light emitting device of the present invention emitting light to reflect and refract light out of a pattern;

in the figure: 1: a light emitting module, 10: a printed circuit board, 11: a light emitting element, 12: a current driving element, A: a light emitting element module, 16: a limit block, 2: a light guiding layer, 21: a concave hole, 3: a fixing pressing bar, 31: a concave part,

32: a first protrusion part, 33: a second protrusion part, 4A: a first adhesive layer, 4B: a second adhesive layer, 4C: a third adhesive layer, 5: skylight glass, 51: a glass frame, C: a pattern layer, R: a reflection layer, and L: light.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and specific embodiments.

As shown in the figure, the light-emitting device is installed on the automobile skylight glass. It comprises the following components: the light-emitting module 1, the light guide layer 2 and the fixing pressing strip 3; the light guide layer 2 is a plate-shaped body made of transparent material with good light guide and rotation properties and proper thickness, and can be preferably made of soft transparent material capable of guiding light, so that the light guide layer can be cut, assembled and attached to the skylight glass according to the size and the radian of the skylight glass.

The two opposite planes of the light guide layer 2 are a first plane and a second plane, respectively, and the present invention preferably forms a pattern layer C on the first plane, and sets a reflective layer R (as shown in fig. 6) for reflecting light on the second plane. The second surface of the light guide layer 2 may be formed with a plurality of fine recesses on its surface by laser engraving or imprinting, and the pattern in the pattern layer C is formed by the plurality of recesses 21. Through the structure of the small concave holes 21, the light transmitted in the light guide layer 2 can be reflected and refracted when touching the concave holes 21, so that the light is brighter at the concave holes 21 than at non-concave holes, and luminous patterns are displayed. The pattern formed in the pattern layer C may be any pattern.

As shown in fig. 2 and 5, the light emitting module 1 preferably includes a printed circuit board 10, a plurality of light emitting elements 11 disposed on the printed circuit board 10, and a plurality of stoppers 16, wherein the plurality of light emitting elements 11 preferably use Light Emitting Diodes (LEDs) for emitting light L; the stoppers 16 are closer to a side of the printed circuit board 10 than the light emitting elements 11.

More specifically, the light emitting module 1 for matching with the light guiding layer 2 is formed by linearly arranging a plurality of light emitting elements 11 on the printed circuit board 10, and the stopper 16 can be disposed between some two light emitting elements 11 without limitation; each stopper 16 is disposed on a side closer to the printed circuit board 10 than the light emitting element 11, and therefore, a gap T (as shown in fig. 5) exists between the stopper 16 and the light emitting surface of the light emitting element 11. In addition, a plurality of current driving elements 12 (e.g., resistors) are matched with one light emitting element 11 to form a light emitting element module a, and each light emitting element module a can be controlled to be supplied with current to enable the light emitting element 11 to emit light.

The fixing batten 3 is a fixing element for providing the light-emitting module 1 thereon and installing and fixing the whole light-emitting device on the automobile skylight glass; as shown in fig. 2 to 4, the fixing bead 3 may be integrally formed in a ring frame shape, and a first protrusion 32 and a second protrusion 33 are formed on the upper surface, and a recess 31 is formed between the first protrusion 32 and the second protrusion 33; the first protrusion 32 is flush with the upper surface of a second protrusion 33, and the bottom surface of the recess 31 is lower than the upper surfaces of the first protrusion 32 and the second protrusion 33.

The mode of the light emitting device of the present invention mounted on the sunroof is explained as follows:

as shown in fig. 3, the printed circuit board 10 is first fixed to the bottom surface of the depression 31 of the fixing bead 3 by the third adhesive layer 4C; the third adhesive layer 4C may be a double-sided tape, and after one side of the third adhesive layer 4C is adhered to the bottom surface of the printed circuit board 10, the other side is adhered to the bottom surface of the recess 31, so as to fix the printed circuit board 10.

Then paste the one side of a first bonding layer 4A on the first face that has set up coating C of leaded light layer 2, paste the another side of first bonding layer 4A on sunroof glass 5's surface again for leaded light layer 2 is fixed in sunroof glass 5.

Finally, after one surface of a second adhesive layer 4B is adhered to the upper surface of the second protrusion 33 of the fixing bead 3, the other surface of the second adhesive layer 4B is adhered to the surface of the sunroof glass 5, and the first protrusion 32 of the fixing bead 3 is pressed on the lower surface of the light guide layer 2, so that the light guide layer 2 is further firmly fixed to the sunroof glass 5. During the installation process, the position of the fixing bead 3 is properly adjusted to make the outer edge of the fixing bead 3 abut against the inner edge of the glass frame 51 of the skylight, so as to accord with the visual beauty. Meanwhile, in the installation process, after the light incident surface on one side of the light guide layer 2 is abutted against the limiting block 16, the second adhesive layer 4B is adhered to the skylight glass 5; therefore, since the light guide layer 2 does not touch the first light emitting element 11A and the second light emitting element 11B during the mounting process, each light emitting element can be protected from being damaged.

The mode of use of the utility model is illustrated below:

as shown in fig. 6, when the power is turned on to make the light emitting element 11 emit light, the light L is projected into the light guiding layer 2 through the incident surface of the light guiding layer 2 to be conducted, the conducted light is reflected by the reflecting layer R to pass through the pattern layer C, and the pattern in the pattern layer C is formed by a plurality of tiny concave holes 21, so that the light L is refracted and reflected by the concave holes 21 when passing through the concave holes 21, and each concave hole 21 is brighter to form a light emitting pattern, thereby creating the atmosphere in the vehicle.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting thereof in any way, and any modifications or variations thereof within the spirit of the same invention are intended to be covered thereby.

Claims (5)

1. A light-emitting device for a sunroof, characterized in that: the light-emitting device comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein a pattern layer is arranged on a first surface of the light guide layer, the pattern layer is composed of a plurality of concave holes capable of reflecting and refracting light, a reflecting layer is arranged on a second surface opposite to the first surface, and a first bonding layer is further arranged around the first surface; the light-emitting module comprises a printed circuit board, a light-emitting element and a limiting block, wherein the light-emitting element is arranged on the printed circuit board and used for emitting light, and the limiting block is closer to one side edge of the printed circuit board than the light-emitting element; the fixing pressing strip is provided with the light-emitting module, so that the light incident edge of the light guide layer contacts the limiting block and is adjacent to the light-emitting element, and the fixing pressing strip is also provided with a second adhesive layer; the light guide layer is fixed on the surface of the skylight through the first adhesive layer, and the fixing pressing strip is fixed on the surface of the skylight through the second adhesive layer.

2. The lighting device for a sunroof according to claim 1, wherein: the light-emitting elements arranged on the printed circuit board are multiple, and the limiting blocks arranged on the printed circuit board are multiple.

3. The lighting device for a sunroof according to claim 1, wherein: the pattern layer is formed by a plurality of concave holes formed in the first surface of the light guide layer in a laser engraving or stamping mode.

4. The lighting device for a sunroof according to claim 2, wherein: the plurality of light emitting elements are arranged in a straight line on the printed circuit board, and each of the stoppers is disposed between a part of adjacent two of the light emitting elements.

5. The lighting device for a sunroof according to claim 1, wherein: the upper surface of fixed layering is formed with first bulge and second bulge, first bulge with form the depressed part between the second bulge, the bottom surface of depressed part is equipped with the third bonding layer, printed circuit board is fixed in through the third bonding layer the bottom surface of depressed part.

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