阅读说明：本技术 汽车内饰星空顶棚及其生产方法 (Automobile interior decoration starry sky ceiling and production method thereof ) 是由 郭焕祥 李海帆 王国淑 隋健 张晓琛 时荣义 于 2019-12-04 设计创作，主要内容包括：本发明涉及一种汽车内饰星空顶棚及其生产方法。汽车内饰星空顶棚,包含顶棚本体和发光系统,发光系统包含光源和穿透顶棚本体的光导纤维,其特征在于,导光导纤维维位于顶棚面层的一侧具有膨大的末端。该膨大末端可以是和光导纤维相同的无色透明材料,也可以是异质的带有颜色或散射粒子的材料。可以提前制作好膨大末端,光导纤维从顶棚的面层穿入；也可以是光导纤维先从顶棚的背层穿入,再从正面制作膨大末端。由于带有膨大末端,发光点不容易陷入到面料中去,也不用像传统工艺一样手工修剪光导纤维,从而避免了光导纤维高度不一,而且修剪的光导纤维断面扎手的问题。(The invention relates to an automobile interior starry sky ceiling and a production method thereof. The starry sky ceiling for the automobile interior decoration comprises a ceiling body and a light-emitting system, wherein the light-emitting system comprises a light source and an optical fiber penetrating through the ceiling body, and the starry sky ceiling is characterized in that the optical fiber is positioned on one side of a ceiling surface layer and is provided with an expanded tail end. The enlarged end may be the same colorless transparent material as the optical fiber or a heterogeneous material with color or scattering particles. The expansion tail end can be manufactured in advance, and the optical fiber penetrates through the surface layer of the ceiling; alternatively, the optical fiber may be threaded through the back layer of the ceiling and then the enlarged end may be formed from the front surface. Because the luminous point is provided with the expanded tail end, the luminous point is not easy to sink into the fabric, and the optical fiber is not required to be manually trimmed like the traditional process, so that the problems that the optical fiber is different in height and the trimmed optical fiber section is too tight are solved.)

1. An automotive interior starry sky ceiling comprising a ceiling body and a lighting system comprising a light source and an optical fibre extending through the ceiling body, characterised in that the optical fibre has an enlarged end at one side of a ceiling facing.

2. The automotive interior starry sky ceiling of claim 1 wherein the enlarged ends of the optical fibers are the same as the optical fiber body and are a colorless transparent material.

3. The automotive interior starry sky ceiling of claim 1 wherein the enlarged ends of the optical fibers are colored differently than the body of the optical fibers.

4. The automotive interior starry sky ceiling of claim 1 wherein the enlarged ends of the optical fibers, unlike the body of the optical fibers, carry scattering particles.

5. The automotive interior starry sky ceiling of claim 1 wherein the expanded ends of the optical fibers have a mushroom head shape, the exposed side is a rounded protrusion, and the side in contact with the ceiling fabric is a flat or concave shape.

6. The method of claim 1, wherein the step of forming the ends of the optical fibers is performed by passing the ends of the optical fibers through the ceiling from the back side of the ceiling to form the enlarged ends.

7. The method of manufacturing a starry sky ceiling for an automobile interior according to claim 1, comprising the steps of forming the ends of the optical fibers before passing through the ceiling and then forming the enlarged ends from the front surface of the ceiling.

8. The method of producing a starry sky ceiling for an automobile interior according to claim 2, comprising the step of shaping the ends of the optical fibers by heating to obtain enlarged ends.

9. The method of manufacturing a starry sky ceiling for an automobile interior according to claim 3, comprising the step of forming the ends of the optical fibers to be enlarged by adhering a colored material thereto.

10. The method of manufacturing a starry sky ceiling for an automobile interior according to claim 4, comprising the step of attaching a material having scattering particles to the ends of the optical fibers to form the enlarged ends.

Technical Field

The invention relates to the field of automotive interior trim, in particular to an automotive interior trim luminous ceiling and a production method thereof.

Background

The automobile interior ceiling is a very traditional automobile interior and plays the roles of sound absorption, heat insulation and beauty. Through the development of the years, although the production processes are various and the materials are different, the fabric is basically in a structure of a framework and fabric, and the fabric is knitted fabric, non-woven fabric, PVC leather and the like.

In recent years, consumers have made individualized demands on car roofs, and roofs with a light-emitting function, such as starry sky roofs, have appeared in the car refit market.

The starry sky dome is generally characterized in that after a ceiling body is produced, holes are punched on the surface of the ceiling, optical fibers penetrate through the front surface of the ceiling body from the back surface of the ceiling body, and a margin is reserved on the front surface of the ceiling body. The light guide fiber is fixed from the back of the ceiling, collected and assembled on a light source, and the light of the light source is transmitted to the front of the ceiling by the light guide fiber to form light with star points. The optical fibers on the front side of the ceiling are fixed from the back side of the ceiling, and then trimmed from the front side.

Due to manual trimming, the problem of untidy trimming is easily caused by trimming the optical fibers on the front side of the ceiling, and trimmed stubbles are pricked to the touch and have poor texture.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an automobile interior starry sky ceiling and a production method thereof, wherein the production method comprises the following steps:

an automotive interior starry sky ceiling comprising a ceiling body and a lighting system comprising a light source and an optical fibre extending through the ceiling body, characterised in that the optical fibre has an enlarged end at one side of a ceiling facing.

In a first preferred embodiment, the enlarged end of the optical fiber is a colorless transparent material, as in the optical fiber body.

In a second preferred embodiment, the enlarged end of the optical fiber is colored differently than the body of the optical fiber.

In a third preferred embodiment, the enlarged end of the optical fiber is different from the body of the optical fiber and carries scattering particles.

One preferred embodiment of the enlarged end of the light guide fiber is in the shape of a mushroom head, the exposed surface of which is a circular protrusion, and the surface of which in contact with the ceiling fabric is flat or concave.

The first production method of the starry sky ceiling for automotive interior described above is characterized by comprising a step of forming the ends of the optical fibers to be expanded after passing through the ceiling from the back surface thereof.

The second method for manufacturing the starry sky ceiling for automotive interior described above is characterized by comprising the steps of forming the ends of the optical fibers before passing through the ceiling and then forming the enlarged ends from the front surface of the ceiling.

The first preferred embodiment of the method for producing a starry sky ceiling for automotive interior is characterized by comprising the step of shaping the ends of the optical fibers by heating to obtain enlarged ends.

A second preferred embodiment of the method for producing a starry sky ceiling for automotive interiors is characterized by comprising the step of bonding the ends of the optical fibers with a colored material to obtain an enlarged end.

A third preferred embodiment of the method for producing a starry sky ceiling for automotive interior, characterized by comprising the step of bonding a material having scattering particles to the ends of optical fibers to obtain enlarged ends.

The automobile interior starry sky ceiling produced by the optical fiber with the expanded tail end can be directly tensioned before the optical fiber is fixed from the back, so that the expanded tail end compresses the fabric on the front side of the ceiling, the expanded tail end on the front side of the ceiling is smooth, subsequent trimming is not needed, the light emitting point is smoother, and the hand feeling is smoother.

Adopt the same kind of colorless transparent material of optic fibre to form the enlarged end, have the same bright effect with traditional starry sky ceiling, because the end is enlarged moreover, so the end is difficult to retract to the surface fabric the inside, and the luminous point is bigger moreover, and visual effect is better. Or thinner optical fibers may be used in combination with the enlarged tip to provide less damage to the ceiling when drilling holes in the ceiling body.

By adopting the colored expansion tail end, the effect that stars with different colors appear on the ceiling can be realized, and special patterns can be combined. In contrast, the existing starburst caps all adopt colorless and transparent optical fibers, and although different colors can be presented along with the color change of a light source, different colors can not be displayed at the same time, and even if patterns are generated through arrangement, the effect is not striking.

The enlarged tail end with the scattering particles can improve the observation angle of stars, and particularly can make the enlarged tail end more striking when the luminous surface of the enlarged tail end is larger.

The mushroom head shape is a preferred shape of the enlarged end, the exposed side is a circular protrusion, and the side in contact with the ceiling fabric is a flat or concave shape. The round bulge exposed outside enables the expanded tail end to be smoother to touch, and the flat or concave shape contacted with the ceiling fabric can better prevent the expanded tail end from sinking into the fabric, so that the luminous effect is ensured.

The enlarged ends may be formed before the optical fibers pass through the apertures in the ceiling body so that they only pass through the facing and back layers of the ceiling, but the efficiency is higher because the enlarged ends are made earlier.

If the optical fibers are first threaded into the back layer and threaded out of the face layer of the ceiling body in a conventional manner, the enlarged ends need to be reworked after the optical fibers have been threaded through the ceiling. This has the advantage that the visual effect can be temporarily adjusted according to the visual effect, and the type and size of the enlarged tip can be adjusted.

If the swelling end is made of colorless transparent material which is the same as the material of the optical fiber, the swelling end can be manufactured by a heating forming mode.

Of course, the enlarged ends of any material can be made in advance and then bonded together. When the expansion end is made of heterogeneous materials, only the bonding method can be adopted.

Drawings

FIG. 1 is a schematic view of a conventional light-emitting ceiling;

FIG. 2 is a first schematic view of a light ceiling of the present application;

FIG. 3 is a second schematic view of a light ceiling of the present application;

fig. 4 is a third schematic view of the light-emitting ceiling of the present application.

Detailed Description

For a better understanding and appreciation of the invention, reference will now be made in detail to the following description taken in conjunction with the accompanying drawings and examples; the examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention.

Comparative example

The light guide fiber is inserted from the back of the ceiling and exposed from the front of the ceiling to leave enough length to prevent the light from being unable to emit light after the light retracts into the thickness of the ceiling. The optical fibers are fixed from the back surface, and the excess optical fibers are trimmed from the front surface so as to be flush with the surface of the ceiling fabric. The optical fiber on the back side is straightened and then assembled on the light source. When the light source is turned on, the starry sky effect can be seen from the front side of the ceiling.

Since the optical fiber is trimmed later, it is inevitable that there are highly different conditions. The height is large, the surface of the ceiling is exposed, and the touch feeling of the ceiling is affected by the trimmed section; the height is small, the light source can be retracted into the thickness of the ceiling, and an effective light emitting point cannot be formed.

And all the optical fibers are colorless and transparent, and only can transmit the color of the light source, so that all the stars can only have the same color although the color of the light source can be changed.

The star on the starry sky is not too large and too bright because the diameter of the optical fiber is limited and too thick and difficult to bend.