CN215154265U - Automobile skylight illuminating device capable of changing display pattern - Google Patents

Abstract

The utility model discloses a light-emitting device for an automobile skylight with changeable display patterns, which comprises a light guide layer, a light-emitting module and a fixed pressing bar; the first surface of the light guide layer is provided with a coating, the coating is provided with a first pattern and a second pattern, and the second surface of the light guide layer is provided with a third pattern; the light-emitting module comprises a first light-emitting element, a second light-emitting element, a third light-emitting element 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 first light-emitting element emits ultraviolet light to enable the first pattern to generate a fluorescence reaction; the second light-emitting element emits infrared light to enable the two patterns to generate fluorescence reaction; the third light emitting element emits primary color light to enable the third pattern to be displayed through reflection and refraction.

Description

Automobile skylight illuminating device capable of changing display pattern

Technical Field

The utility model relates to an install in the illuminator of sunroof glass surface in order to build the atmosphere, especially convertible display pattern's illuminator for sunroof.

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 view 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. The luminous vehicle window glass disclosed in the chinese patent CN107471978A comprises a first transparent plate, a first transparent bonding layer, a flexible transparent substrate, a second transparent bonding layer and a second transparent plate which are sequentially stacked from top to bottom, wherein the refractive index of the second transparent bonding layer is the same as that of the second transparent plate, the refractive index of the second transparent bonding layer is larger than that of the flexible transparent substrate, a linear light source is arranged at the side edge of the second transparent plate, so that incident light of the linear light source is incident from the side edge of the second transparent plate and/or the second transparent bonding layer, and is guided and transmitted between the second transparent plate and the second transparent bonding layer, and a scattering layer for scattering incident light of the linear light source is arranged at the lower surface of the flexible transparent substrate. The skylight glass for adjusting the atmosphere in the vehicle, disclosed in chinese patent CN109624837B, includes a first glass plate, a bonding layer, a flexible sheet layer and a second glass plate stacked in sequence from top to bottom, a light source arranged at a side of the second glass plate, a refractive index of the second glass plate being greater than that of the flexible sheet layer, a reflective pattern being provided on a lower surface of the flexible sheet layer, a boundary of the flexible sheet layer being retracted inward by 3-30 mm relative to a boundary of the second glass plate, the bonding layer and the second glass plate enclosing and coating the flexible sheet layer together, and a lower surface of the flexible sheet layer being tightly attached to an upper surface of the second glass plate. 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. The vehicle glazing disclosed in the Chinese patent CN103770696B comprises a glass plate, a light guide 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-mentioned patent documents is that only the glass has a luminous effect, or only a single reflective pattern can be produced without changing the effect. Further, there is no structure configured to protect 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 sunroof of convertible display pattern.

The utility model discloses a solve present sunroof glass only have luminous effect or can only produce single reflection of light pattern but do not have the change effect to and cause light emitting component to receive the problem of collision damage easily during the assembly. The utility model discloses install at sunroof glass, can alternate the luminous pattern that shows, build abundanter changeable, more comfortable atmosphere in the car inside, the structure that is used for protecting light emitting component, can make light emitting device avoids light emitting component to receive the collision damage when assembling in the skylight.

The utility model discloses to the technical scheme that foretell technical problem adopted is: a light-emitting device for an automobile skylight with changeable display patterns comprises: the light guide plate comprises a light guide layer, a light emitting module and a fixing pressing strip, wherein a first surface of the light guide layer is provided with a coating with a first pattern, the first pattern is formed by first printing ink which generates fluorescence reaction on ultraviolet light, a first adhesive layer is further arranged around the first surface, a second surface of the light guide layer opposite to the first surface is provided with a third pattern, and the third pattern is formed by a plurality of concave holes capable of reflecting and refracting light; the light-emitting module comprises a printed circuit board, at least one first light-emitting element arranged on the printed circuit board and at least one limiting block, wherein the first light-emitting element is used for emitting ultraviolet light, and the limiting block is closer to one side edge of the printed circuit board than the first light-emitting element; the light emitting module is 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 first light emitting elements, and a second bonding layer is further arranged on the fixing pressing strip; the light guide layer is fixed on the surface of the automobile skylight through the first adhesive layer, and the fixing pressing strip is also fixed on the surface of the automobile skylight through the second adhesive layer.

Preferably, the number of the first light-emitting elements is at least two, and the first light-emitting elements are ultraviolet LEDs.

Preferably, at least one third light emitting element is disposed on the printed circuit board.

Preferably, the number of the third light emitting elements is at least two, and the third light emitting elements are primary color LEDs.

Preferably, the coating layer further includes a second pattern formed of a second ink that fluoresces in response to infrared light and does not overlap the first pattern;

preferably, the printed circuit board is provided with at least one second light emitting element, the second light emitting element is used for emitting infrared light, and the limiting block is closer to one side of the printed circuit board than the second light emitting element.

Preferably, the number of the second light emitting elements is at least two, and the second light emitting elements are infrared light LEDs.

Preferably, the third pattern is formed by forming a plurality of concave holes on the second surface of the light guide layer by laser engraving.

Preferably, the first light emitting elements are linearly arranged on the printed circuit board, and each of the stoppers is disposed between two adjacent first light emitting elements.

Preferably, one of the first light emitting elements, one of the second light emitting elements, and one of the third light emitting elements are sequentially arranged to form a light emitting unit, a plurality of the light emitting units are linearly arranged on the printed circuit board, and each of the stoppers is disposed between adjacent light emitting units.

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, fixed layering depressed part department 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 advantages that: when the utility model discloses install behind sunroof glass, luminous through switching different light emitting component

To display fluorescent or reflective patterns more variably to create a richer, more comfortable atmosphere in the interior of the automobile, and the light emitting elements in the light emitting module can be properly protected from collision damage during installation into the sunroof.

Drawings

FIG. 1 is a schematic view showing a state in which a light emitting device of the present invention is mounted on a sunroof glass;

fig. 2 is a partial perspective view of the light emitting device of the present invention;

FIG. 3 is a plan sectional exploded view of the light-emitting device according to the present invention;

FIG. 4 is a cross-sectional plan view of the light-emitting device assembly of the present invention;

fig. 5 is a schematic partial plan view illustrating a configuration relationship between a light emitting element and a stopper of the light emitting device of the present invention;

fig. 6 is a schematic side sectional view of a first light-emitting element of the light-emitting device of the present invention emitting ultraviolet light to cause a first pattern of a coating layer to generate a fluorescence reaction;

FIG. 7 is a schematic cross-sectional side view of a second light-emitting device of the present invention emitting infrared light to cause a second pattern of a coating layer to generate a fluorescence reaction;

fig. 8 is a schematic side sectional view of the light emitting device of the present invention, in which the first light emitting element and the second light emitting element emit light simultaneously, so that the first pattern and the second pattern generate fluorescence reaction simultaneously;

FIG. 9 is a schematic side sectional view of a third light-emitting element of the light-emitting device of the present invention emitting light to reflect and refract a third pattern;

in the figure: the LED module comprises a light emitting module, a printed circuit board (10), a first light emitting element (11A), a second light emitting element (11B), a current driving element (12), a light emitting element module (A), a light emitting unit (U), a limiting block (16), a light guide layer (2), a concave hole (21), a fixing pressing strip (3), a concave part (31), a first convex part (32), a second convex part (33), a first adhesive layer (4A), a second adhesive layer (4B), a third adhesive layer (4C), skylight glass (5), a glass frame (51), a coating (C), a first pattern (C1), a second pattern (C2), ultraviolet light (L1), infrared light (L2) and primary color light (L3).

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in the figure, the utility model discloses a light-emitting device for sunroof of convertible display pattern be used for installing the light-emitting device on sunroof glass 5. The LED light guide plate comprises a light guide layer 2, a light emitting module 1 and a 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 preferably can be made of soft light-conductive transparent material, so that the light guide layer can be cut, assembled and attached to the automobile skylight glass according to the size and the radian of the automobile skylight glass.

Two opposite planes of the light guide layer 2 are respectively a first plane and a second plane. The utility model discloses preferably can utilize impression or printing mode with first printing ink and second printing ink at leaded light layer 2 first face forms non-overlapping first pattern C1 and second pattern C2 each other respectively, first pattern C1 constitutes coating C (as shown in FIG. 6) on the first face of leaded light layer 2 with second pattern C2 jointly.

The first pattern C1 is formed by a first ink which generates a fluorescent reaction to ultraviolet light, and a first adhesive layer 4A is disposed around the first surface. A third pattern C3 is formed on the second surface of the light guide layer 2 opposite to the first surface, and the third pattern C3 is composed of a plurality of concave holes 21 capable of reflecting and refracting light. The second pattern C2 is formed of a second ink that fluoresces in response to infrared light.

The basic components of the first ink and the second ink comprise: pigments, linking agents and additives; they are all inorganic compounds or organic compounds, and printing inks having different characteristics are produced by appropriately adjusting the proportions of the components. For example, a printed pattern can be made fluorescent or phosphorescent phosphor by adding appropriate fluorescent or phosphorescent pigment powder to the ink. The utility model discloses use colourless fluorescent pigment to regard as the component one of first printing ink and second kind printing ink respectively to add different additives in first printing ink and second kind printing ink, make the first pattern C1 who is printed by first kind printing ink produce the fluorescence reaction and give out light when accepting the ultraviolet light, but do not produce the fluorescence reaction and can't be seen by the vision hardly when accepting other light, promptly first printing ink can be regarded as stealthy printing ink; the second pattern C2 printed by the second ink fluoresces and emits light when receiving infrared light that is invisible light, but does not fluoresce and is hardly visible when receiving other light, i.e., the second ink is also invisible.

As shown in fig. 9, the first pattern C1 may be any pattern; the second pattern C2 may be any pattern different from the first pattern C1, and may even be a complementary pattern to the first pattern C1, but the first pattern C1 and the second pattern C2 do not overlap each other.

The second surface of the light guide layer 2 is formed with a plurality of fine concave hole 21 structures by laser engraving, and the plurality of concave holes 21 constitute a third pattern C3. 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 the luminous third pattern C3 is shown.

As shown in fig. 2 and 5, the light emitting module 1 preferably includes a printed circuit board 10, a plurality of first light emitting elements 11A, a plurality of second light emitting elements 11B, a plurality of third light emitting elements 11C, and a plurality of stoppers 16 disposed on the printed circuit board 10, the plurality of first light emitting elements 11A preferably use ultraviolet light emitting diodes (UV LEDs) for emitting ultraviolet light; the second light emitting element 11B preferably uses an infrared light emitting diode (IR LED) for emitting infrared light; the plurality of third light emitting elements 11C preferably use primary light emitting diodes (RGB LEDs) for emitting three primary colors of red, green, and blue; the stoppers 16 are closer to a side of the printed circuit board 10 than the first, second, and third light emitting elements 11A, 11B, and 11C. The light incident edge of the light guide layer 2 contacts the stopper 16.

One first light emitting element 11A, one second light emitting element 11B, and one third light emitting element 11C are sequentially arranged to form a light emitting unit U, a plurality of the light emitting units U are linearly arranged on the printed circuit board 10, and each stopper 10 is disposed between adjacent light emitting units.

More specifically, when the first surface of the light guiding layer 2 is provided with the coating C including the first pattern C1 and the second pattern C2, and the second surface of the light guiding layer 2 is provided with the third pattern C3, as shown in fig. 5, the light emitting module 1 is configured such that a first light emitting element 11A, a second light emitting element 11B and a third light emitting element 11C are sequentially arranged to form a light emitting unit U, and a plurality of the light emitting units U are linearly arranged on the printed circuit board 10, and the stopper 16 can be disposed between the first light emitting element 11A and the second light emitting element 11B, between the second light emitting element 11B and the third light emitting element 11C, or between the first light emitting element 11A and the third light emitting element 11C without limitation; each stopper 16 is disposed on a side closer to the printed circuit board 10 than the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element 11C. Therefore, a gap T (as shown in fig. 5) exists between the limiting block 16 and the light emitting surfaces of the first, second, and third light emitting elements 11A, 11B, and 11C. In addition, a plurality of current driving elements 12 (e.g., resistors) are further used in combination with one first light emitting element 11A, one second light emitting element 11B, or one third light emitting element 11C to form one light emitting element module a, and each light emitting element module a can be controlled to be supplied with current to enable the first light emitting element 11A, the second light emitting element 11B, or the third light emitting element 11C to emit light.

The fixing bead 3 is a fixing member for providing the light emitting module 1 thereon and fixing the whole light emitting device to the sunroof glass 5. As shown in fig. 2 to 4, the fixing bead 3 may be integrally formed in a ring frame shape. A first protrusion 32 and a second protrusion 33 are formed on the upper surface of the fixing bead 3, a recess 31 is formed between the first protrusion and the second protrusion, the first protrusion 32 is flush with the upper surface of the 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 fixing depression bar 31 is provided with a third adhesive layer 4C, and the printed circuit board 10 is fixed on the bottom surface of the depression bar 31 through the third adhesive layer 4C.

The fixed pressing strip 3 is also provided with a second adhesive layer 4B; the light guide layer 2 is fixed on the surface of the automobile skylight 5 through the first adhesive layer 4A, and the fixing pressing strip 3 is also fixed on the surface of the automobile skylight 5 through the second adhesive layer 4B.

The utility model discloses also can only set up first pattern C1 or only set up second pattern C2 at the coating C of the first face of leaded light layer 2, but not set up first pattern and second pattern simultaneously (not shown in the figure). Although not shown in the drawings, it can be understood by referring to fig. 5 and 6 that when only the first pattern C1 or only the second pattern C2 is disposed on the coating layer C of the first surface of the light guiding layer 2, the light emitting module 1 is configured to dispose only the first light emitting elements 11A and the third light emitting elements 11C or the second light emitting elements 11B and the third light emitting elements 11C arranged in a straight line on the printed circuit board 10. A stopper is disposed between the first light emitting elements linearly arranged on the printed circuit board 10.

The mode of the light-emitting device installed in the sunroof of the utility model is described as follows:

as shown in FIG. 3, the printed circuit board 10 is first fixed to the concave portion 31 of the fixing bead 3 by the third adhesive layer 4C

A bottom surface; the third adhesive layer 4C may be a double-sided tape, and one side of the third adhesive layer 4C is adhered to the printed circuit board 10

Then, the other surface is adhered to the bottom surface of the recess 31 to fix the printed circuit board 10.

Then paste the one side of 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, 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, so that each light emitting element can be protected from being damaged.

Since the light emitting device of the present invention preferably has the coating C including the first pattern C1 and the second pattern C2 on the first surface of the light guiding layer 2, and the third pattern C3 on the second surface, and the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element 11C are disposed on the light emitting module 1, the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element can be selectively switched by the IC circuit and the switch, the usage of the present invention is described as follows:

as shown in fig. 6, when the circuit is switched to make only the first light emitting element 11A emit the ultraviolet light L1, only the first pattern C1 generates the fluorescent reaction to the ultraviolet light L1 to emit light, and the second pattern C2 does not generate the fluorescent reaction to emit no light, so that the first pattern C1 emitting light is reflected by the second surface of the light guiding layer 2, and the first pattern on the sunroof can be viewed when the occupant in the vehicle raises his head. Meanwhile, the ultraviolet light L1 emitted by the first light emitting element 11A is reflected and refracted by the concave hole 21 of the third pattern C3, so that the third pattern C3 emits light and reflects the light out of the second surface of the light guiding layer 2.

As shown in fig. 7, when the circuit is switched to make only the second light emitting element 11B emit the infrared light L2, only the second pattern C2 generates a fluorescence reaction to the infrared light L2 to reflect light, and the first pattern C1 does not generate a fluorescence reaction to emit light, so that the second pattern C2 emitting light is reflected by the second surface of the light guiding layer 2, and the second pattern on the sunroof can be viewed when the occupant in the vehicle raises his head. Since the infrared light L2 is invisible light, the third pattern C1 is not caused to emit light when only the second light emitting element 11B is caused to emit infrared light L2.

As shown in fig. 8, when the circuit is switched to make the first light emitting element 11A emit ultraviolet light L1 and the second light emitting element 11B emit infrared light L2 at the same time, the first pattern C1 generates a fluorescence reaction to the ultraviolet light L1 to emit light, the second pattern C2 generates a fluorescence reaction to the infrared light L2 to emit light, and the ultraviolet light L1 is reflected and refracted by the concave hole 21 of the third pattern C3 to emit light, so that the first pattern C1, the second pattern C2 and the third pattern C3 are simultaneously displayed on the second surface of the light guiding layer 2; the first pattern C1, the second pattern C2 and the third pattern C3, which are properly designed and matched, can present a more stereoscopic visual effect by the distance between each other.

As shown in fig. 9, when the circuit is switched to make only the third light emitting element 11C emit the three primary color light L3, only the concave hole 21 of the third pattern C3 reflects and refracts the three primary color light L3 to emit light, and neither the first pattern C1 nor the second pattern C2 generates fluorescence reaction and does not emit light, so that only the third pattern C3 appears on the second surface of the light guiding layer 2, and the passenger in the vehicle can see the third pattern on the sunroof when the passenger is raising his head. The third light emitting element 11C can also be controlled to emit red, blue or green light, respectively or simultaneously, so that the third pattern presents a more colorful visual effect.

The foregoing is illustrative of the preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any modifications or variations of the invention, which are within the spirit of the invention, are intended to be included within the scope of the invention.

Claims (9)

1. A light-emitting device for an automobile skylight with changeable display patterns is characterized in that: the light-emitting device comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein a first surface of the light guide layer is provided with a coating with a first pattern, the first pattern is formed by first ink which can generate fluorescence reaction on ultraviolet light, a first bonding layer is further arranged around the first surface, a third pattern is formed on a second surface, opposite to the first surface, of the light guide layer, and the third pattern is composed of a plurality of concave holes capable of reflecting and refracting light; the light-emitting module comprises a printed circuit board, at least one first light-emitting element arranged on the printed circuit board and at least one limiting block, wherein the first light-emitting element is used for emitting ultraviolet light, and the limiting block is closer to one side edge of the printed circuit board than the first light-emitting element; the light emitting module is 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 first light emitting elements, and a second bonding layer is further arranged on the fixing pressing strip; the light guide layer is fixed on the surface of the automobile skylight through the first adhesive layer, and the fixing pressing strip is also fixed on the surface of the automobile skylight through the second adhesive layer.

2. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the first light-emitting elements are at least two, and the first light-emitting elements are ultraviolet LEDs.

3. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: at least one third light-emitting element is arranged on the printed circuit board.

4. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 3, wherein: the number of the third light-emitting elements is at least two, and the third light-emitting elements are primary color LEDs.

5. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the coating further includes a second pattern formed of a second ink that fluoresces in response to infrared light and that does not overlap the first pattern; the printed circuit board is provided with at least one second light-emitting element, the second light-emitting element is used for emitting infrared light, and the limiting block is closer to one side edge of the printed circuit board than the second light-emitting element.

6. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 5, wherein: the number of the second light-emitting elements is at least two, and the second light-emitting elements are infrared light LEDs.

7. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the third pattern is formed by forming a plurality of concave holes on the second surface of the light guide layer in a laser engraving mode.

8. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the first light-emitting elements are linearly arranged on the printed circuit board, and each limit block is arranged between two adjacent first light-emitting elements.

9. The light-emitting device for an automobile sunroof capable of changing a display pattern 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, fixed layering depressed part department 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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