CN210692583U - Graphical automobile-used fluorescence piece and car headlight structure - Google Patents

Abstract

The utility model discloses a graphical automobile-used fluorescence piece and car headlight structure, graphical automobile-used fluorescence piece include base plate layer, LED chip and the fluorescence lamella that from the bottom up set gradually, the fluorescence lamella includes fluorescence piece main part and sets up the graphic structure layer on fluorescence piece main part surface, graphic in the graphic structure layer with the increase of the interval on fluorescence lamella layer surface and increase. By arranging the pattern structure layer on the fluorescent sheet layer at the top of the LED chip, the loss of the LED chip caused by total reflection through the fluorescent sheet layer is reduced, and under the condition that the power of the LED chip and the like are not changed, the light output is improved, the brightness of a device is improved, and the performance of the device is improved.

Description

Graphical automobile-used fluorescence piece and car headlight structure

Technical Field

The utility model relates to a car headlight technical field especially relates to a graphical automobile-used fluorescence piece and car headlight structure.

Background

With the continuous popularization of automobiles, the requirements on the performance of the automobiles are higher and higher, and the automobiles are not durable, exquisite in appearance, oil-saving and the like. In the case of automobiles, as for glasses, the automobile headlamp is the same as that of people and various living beings, the automobile headlamp with exquisite appearance and practicability has the very important influence on the automobiles, and the automobile headlamp is originally changed into automobile safety equipment which is designed by taking safety into consideration at present, wherein popular automobile headlamps mainly comprise an LED headlamp and a relatively mature xenon lamp.

The LED is an electroluminescent device, which uses a solid semiconductor chip as a light emitting material, and directly emits light by photon emission caused by recombination of carriers. The LED headlight is a lighting fixture manufactured by using an LED as a light source. Compared with the xenon headlamp, the xenon headlamp has the advantages of larger illumination area, brighter brightness, no response time of illumination and the like. Xenon lamps, in contrast to the "halogen lamps" of the predecessors, are bright, have a long life and appear to be more attractive than halogen lamps. Due to the physical characteristics of the LED, the LED headlamp can realize light distribution in a wider range, and compared with a xenon headlamp, the LED headlamp is better than the xenon headlamp in terms of light distribution area and light distribution uniformity.

At present, the existing car headlight technology mainly uses a fluorescent powder spraying technology to carry out high-pressure atomization and uniform spraying on fluorescent powder and the surface of an LED blue light chip, and the technology has the advantages that the fluorescent powder layer is thinner, the heat on the surface of the chip is low, further, the thermal resistance is lower, the reliability of a device is relatively stable, and the defect is that the brightness is not high; the other is the current mainstream spray coating which adopts PIG fluorescent glass to replace fluorescent powder, and the third is the spray coating which adopts fluorescent PIC fluorescent ceramic to replace fluorescent powder.

The latter two kinds of reliability are superior to the first kind, but the cost is relatively high, and the method is mainly applied to the automobile front-mounted market, because the requirement on the color rendering index of the automobile lamp illumination is not high, because the latter two kinds of illumination gradually become mainstream at present, the PIC has better heat conduction than the PIG, but the cost is relatively high, but the brightness of the three kinds of technologies still does not reach the expectation at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a graphical automobile-used fluorescence piece and car headlight structure improves device luminance, promotes and produces property ability.

In order to solve the technical problem, the embodiment of the utility model provides an automobile-used fluorescence piece of patterning, including base plate layer, LED chip and the fluorescence lamella that from the bottom up set gradually, the fluorescence lamella includes fluorescence piece main part and sets up the graphic structure layer on fluorescence piece main part surface, graphic in the graphic structure layer with the increase of the interval on fluorescence lamella surface and increase.

The graphic structure layer is a front graphic structure and/or a back graphic structure.

Wherein the thickness of the front pattern structure or the back pattern structure is 5-10 μm.

Wherein the thickness of the fluorescent sheet layer is 0.1 mm-0.2 mm.

The figure shape of the figure structure layer is arc-shaped, saw-toothed, sine-wave-shaped or conical.

The front pattern structure and the back pattern structure are the same in shape and size.

Wherein the pattern period of the front pattern structure or the back pattern structure is 0-3 μm.

The fluorescent sheet layer is a fluorescent ceramic fluorescent sheet layer, a fluorescent glass fluorescent sheet layer or an organic silicon fluorescent sheet layer.

In addition, the embodiment of the utility model provides a car headlight structure is still provided, include as above the automobile-used fluorescence piece of graphical.

The embodiment of the utility model provides a graphical automobile-used fluorescence piece and car headlight structure compares with prior art, has following advantage:

the embodiment of the utility model provides a graphical automobile-used fluorescence piece and car headlight structure through set up the graphical structure layer on the fluorescence lamella at LED chip top, reduces the LED chip and because the loss that the total reflection caused through the fluorescence lamella, under the unchangeable circumstances such as LED chip power, improves the luminosity, improves the luminance of device, improves the device performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a specific implementation of a patterned vehicular fluorescent sheet according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a specific implementation of a patterned vehicular fluorescent sheet according to an embodiment of the present invention.

In a specific embodiment, the patterned automotive fluorescent sheet comprises a substrate layer 10, an LED chip 20 and a fluorescent sheet layer 30, which are sequentially arranged from bottom to top, wherein the fluorescent sheet layer 30 comprises a fluorescent sheet main body and a pattern structure layer arranged on the surface of the fluorescent sheet main body, and the distance between a pattern in the pattern structure layer and the surface of the fluorescent sheet layer 30 is increased.

By arranging the pattern structure layer on the fluorescent sheet layer 30 at the top of the LED chip 20, the loss of the LED chip 20 caused by total reflection through the fluorescent sheet layer 30 is reduced, and under the condition that the power and the like of the LED chip 20 are not changed, the light-emitting degree is improved, the brightness of a device is improved, and the performance of the device is improved.

The utility model discloses in, the setting of pattern structure layer carries out the figure setting on current fluorescent plate and obtains pattern structure layer, obtains the figure through direct sculpture or other technologies on fluorescent plate promptly, and the pattern structure layer that can also obtain the micro-structure through modes such as deposit, sculpture certainly, the utility model discloses do not do the injecion to this.

In the present invention, the pattern of the pattern structure layer may be distributed on the single surface of the fluorescent sheet, and the pattern structure layer may be deviated from the LED chip 20 or adjacent to the LED chip 20; it is also possible to distribute the two sides so that the graphic structure layer is a front side graphic structure and/or a back side graphic structure.

The thickness and shape of the front pattern structure or the back pattern structure of the utility model are not limited, and the thickness of the front pattern structure or the back pattern structure is 5-10 μm.

The utility model discloses do not limit to the thickness of fluorescence lamella 30, the thickness of fluorescence lamella 30 is 0.1mm ~ 0.2 mm.

The utility model discloses in do not do the injecing to the shape of graphic structure layer, the graphic shape of graphic structure layer can be for any one of circular arc, zigzag, sine wave form or conical most.

Preferably, the front pattern structure and the back pattern structure have the same shape and the same size.

The utility model discloses in owing to set up the figure structure on the fluorescence piece surface, and the figure shape wherein can be continuous, also can be discontinuous, and the interval between the adjacent figure can be the same in the shape of discontinuous figure moreover, also can be different, the utility model discloses do not injecing to the figure cycle, generally the front pattern structure or the figure cycle of back pattern structure is 0 ~ 3 mu m.

The utility model discloses in do not do the injecing to the material of fluorescence piece, fluorescence lamella 30 can be PIC fluorescence ceramic fluorescence lamella 30, PIG fluorescence glass fluorescence lamella 30 or organosilicon fluorescence lamella 30.

In the utility model, PIC or PIG imaging is mainly carried out by etching, for example, the pattern structure is obtained in the modes of exposure, development and the like; and for organic silicon patterning, a grinding and pressing method is mainly adopted, imprinting glue is arranged on a substrate, and a hot pressing method is used for forming a desired pattern on the imprinting glue through operations of imprinting, demolding and the like.

The utility model discloses in through setting up pattern structure, reduce the total reflection that light that LED chip 20 sent takes place after to the air to fluorescence lamella 30, derive the light that the LED chip sent as far as possible to improve device luminance.

The final product, as shown in fig. 1, in one embodiment, has a substrate layer 10 at the bottom, an LED chip 20 on the substrate layer, and a phosphor layer 30 on the LED chip 20, wherein the phosphor layer 40 and the LED chip 30 are fixed by white glue 40 on both sides of the LED chip 20 and the phosphor layer 30, and are also spaced from other components.

The present invention is to cut the phosphor layer 30 into a predetermined size and shape after patterning it, and then to combine it with the LED chip 20.

In addition, the embodiment of the utility model provides a car headlight structure is still provided, include as above the automobile-used fluorescence piece of graphical.

Because car headlight structure, include as above the automobile-used fluorescence piece of graphical, therefore have the same beneficial effect, the utility model discloses no longer describe here.

To sum up, the embodiment of the utility model provides a graphical automobile-used fluorescence piece and car headlight structure through set up the graphical structure layer on the fluorescence lamella at LED chip top, reduces the LED chip and because the loss that the total reflection caused through the fluorescence lamella, under the unchangeable circumstances such as LED chip power, improves the luminosity of luminosity, improves the device performance.

It is right above the utility model provides a graphical automobile-used fluorescence piece and car headlight structure have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (9)

1. The utility model provides a graphical automobile-used fluorescence piece, its characterized in that includes base plate layer, LED chip and the fluorescence lamella that from the bottom up set gradually, the fluorescence lamella includes fluorescence piece main part and sets up the graphic structure layer on fluorescence piece main part surface, the figure in the graphic structure layer with the increase of the interval on fluorescence lamella layer surface and increase.

2. The patterned vehicular phosphor sheet of claim 1, wherein the graphic structure layer is a front graphic structure and/or a rear graphic structure.

3. The patterned vehicular fluorescent sheet of claim 2, wherein the front pattern structure or the rear pattern structure has a thickness of 5 μm to 10 μm.

4. The patterned vehicular phosphor sheet of claim 3, wherein the thickness of the phosphor layer is 0.1mm to 0.2 mm.

5. The patterned vehicular fluorescent sheet of claim 4, wherein the pattern structure layer has a shape of a circular arc, a zigzag, a sine wave or a cone.

6. The patterned vehicular phosphor patch of claim 5, wherein said front pattern structure and said back pattern structure are identical in shape and size.

7. The patterned vehicular phosphor sheet according to claim 6, wherein the pattern period of the front pattern structure or the rear pattern structure is 0 to 3 μm.

8. The patterned vehicular phosphor patch according to claim 7, wherein the phosphor patch layer is a fluorescent ceramic phosphor patch layer, a fluorescent glass phosphor patch layer, or a silicone phosphor patch layer.

9. An automobile headlamp structure, characterized by comprising the patterned automobile fluorescent sheet as claimed in any one of claims 1 to 8.

Images