Star sky sunshade curtain and its application, automobile

Abstract

This invention relates to automotive lighting equipment, and more particularly to a starry sky sunshade and its application in automobiles. The invention employs a strip-shaped emitter as the light source for starry sky illumination, which provides more uniform and stable light emission compared to point light sources. By embedding a light guide layer within the sunshade in conjunction with the strip-shaped emitter, the light guide layer conducts the light emitted by the strip-shaped emitter, achieving starry sky illumination. This provides the advantage of uniform light intensity distribution and avoids the problem of light intensity attenuation due to the elongation of the light source emission path, resulting in poor starry sky illumination. The entire starry sky sunshade is based on a light-blocking curtain structure, with the strip-shaped emitter and light guide layer integrated into the curtain structure, improving the overall integrity of the starry sky illumination structure and ease of assembly and disassembly, thus solving the problem of poor structural integrity inherent in existing point light sources. Distributing the strip-shaped emitters around the outer perimeter of the curtain makes them easier to control and ensures higher brightness.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts, and relates to automotive lighting equipment, particularly to a starry sky sunshade and its application as a starry sky luminous structure in automobiles. Background Technology

[0002] Existing starry sky lighting structures on car roofs primarily achieve the "starry sky" effect by arranging point light sources. There are two common methods: one is to directly install point light sources on the roof, and the other is to install point light sources on the sunshade fabric. However, existing point light source starry sky lighting structures still have the following technical drawbacks:

[0003] (1) Several point light sources are scattered and numerous, resulting in poor overall integrity of the starlight structure and complex production and installation processes;

[0004] (2) Point light sources are not only high in heat, large in size and short in life, but also have a light intensity that gradually decreases along the emission direction, and the brightness is unstable, which affects the starlight effect.

[0005] Therefore, it is necessary to propose a new type of rooftop starlight lighting scheme to overcome the above problems and meet users' ever-increasing quality demands. Summary of the Invention

[0006] The purpose of this invention is to provide a novel starry sky sunshade and its application as a starry sky luminous structure in automobiles, in order to solve the problems existing in the prior art. It not only has a stronger overall structure, but also a more stable starry sky luminous intensity and a higher degree of realism in simulating starry sky luminescence.

[0007] To achieve the above objectives, the present invention provides the following solution:

[0008] On one hand, this invention proposes a starry sky sunshade, comprising a structural frame, a sunshade assembly, and a strip-shaped light emitter, wherein:

[0009] The structural frame includes a front crossbeam, a rear crossbeam, and two guide rails placed on both sides. The two guide rails are parallel, and the rear ends of the two guide rails are respectively connected to the two ends of the rear crossbeam. The front ends of the two guide rails are respectively connected to the two ends of the front crossbeam to form a rectangular hollow in the middle of the structural frame. Guide rail grooves are opened on the inner side of the two guide rails.

[0010] The sunshade assembly includes a sunshade, a front pull plate, and a rear roll-up shaft. The sunshade is positioned at the rectangular cutout and comprises a light-blocking layer, a light-guiding layer, and a light-leaking layer arranged in successive layers. The edge of the light-guiding layer is exposed at the outer periphery of the sunshade to receive and guide light. The light-leaking layer has several light-leaking holes to emit light in a star-like pattern. The rear roll-up shaft is rotatably mounted on the rear crossbeam and connected to the rear end of the sunshade. The rear roll-up shaft is used to roll up or release the sunshade. The front pull plate is positioned at the front end of the sunshade and is used to pull the sunshade. The two sides of the sunshade are respectively movably embedded in the guide grooves of the two guide rails and slide in cooperation with the guide rails.

[0011] The strip light emitter is installed in the guide groove of each of the two guide rails. The strip light emitter is used to emit light to illuminate the edge of the sunshade curtain, so as to provide a strip light source for the light guide layer.

[0012] In some embodiments, the light guide layer is a hollow mesh structure or a strip grid structure.

[0013] In some embodiments, all the light-leaking holes on the light-leaking layer have the same shape and size;

[0014] Alternatively, all the light-leaking holes on the light-leaking layer may have the same shape, but not be exactly the same size.

[0015] In some embodiments, the light guide layer in the sunshade is provided as one layer or multiple layers are continuously provided.

[0016] In some embodiments, the strip light emitter within the guide rail groove is arranged parallel to the guide rail.

[0017] In some embodiments, the starry sky sunshade further includes a lead wire control system disposed on the rear crossbeam, comprising:

[0018] One branch of the wire has an electrical interface at its end for connecting to an external command and control center.

[0019] A second wire branch is inserted into the guide rail groove. One end of the second wire branch is electrically connected to the first wire branch, and the other end is electrically connected to the corresponding strip light emitter in the guide rail groove. The second wire branch is inserted into the guide rail groove of each of the two guide rails.

[0020] In some embodiments, the sunshade assembly further includes a roll-up / roll-down power system connected to the rear roll-up shaft, the roll-up / roll-down power system being used to drive the rear roll-up shaft to rotate, so as to unfold or roll up the sunshade onto the rear roll-up shaft;

[0021] Both the rear winding shaft and the front pull plate are provided with the strip light emitter;

[0022] The lead control system further includes:

[0023] The third wire branch has one end electrically connected to the first wire branch and the other end electrically connected to the curtain raising and lowering power system;

[0024] The fourth wire branch has one end electrically connected to the first wire branch and the other end electrically connected to the strip light emitter on the rewind shaft.

[0025] The fifth wire branch has one end movably inserted into the rear winding shaft and electrically connected to the first wire branch, and the other end movably inserted through the inside of the guide rail and the end of the front pull plate and electrically connected to the strip light emitter on the front pull plate.

[0026] In some embodiments, any of the strip light emitters includes a flexible circuit board and a plurality of LED beads disposed on the flexible circuit board;

[0027] All of the strip-shaped light emitters are monochromatic light emitters; or, all of the strip-shaped light emitters are multicolor light emitters; or, of all the strip-shaped light emitters, some are monochromatic light emitters and the remaining are multicolor light emitters.

[0028] On the other hand, the present invention proposes the application of the starry sky sunshade described in any of the above-mentioned claims as a starry sky luminous structure in automobiles.

[0029] In another aspect, the present invention proposes an automobile in which the roof of the automobile is provided with the starry sky sunshade curtain described in any of the preceding claims.

[0030] The present invention achieves the following technical effects compared to the prior art:

[0031] (1) Using a strip light source as the light source for starlight emission results in more uniform and stable emission compared to point light sources.

[0032] (2) By embedding a light guide layer in the sunshade and cooperating with the strip light emitter, the light guide layer can conduct the light source emitted by the strip light emitter to realize starlight. It has the advantage of uniform light intensity distribution, which can avoid the problem of light intensity attenuation due to the extension of the light source emission path, thus resulting in poor starlight effect. It can improve the realism of starlight simulation.

[0033] (3) The entire starry sky sunshade curtain is based on the blackout curtain structure as the basic framework. It not only realizes the integration of the starry sky top and the blackout curtain's functions, but also integrates the strip light emitter and light guide layer into the blackout curtain structure, improving the overall integrity of the starry sky light-emitting structure and the ease of disassembly and assembly, and solving the problem of poor structural integrity of existing point light sources.

[0034] (4) Strip light sources can be set on the guide rails, front pull plate and rear roll-up shaft of the structural frame. The light emission of strip light sources is more uniform than that of point light sources, and subsequent processing is more convenient and flexible.

[0035] (5) Compared with point light sources, which have high heat, large volume and short lifespan, the present invention can disperse strip light sources around the outer periphery of the curtain, which has small space, low heat dissipation, stable brightness, and is easier to control, and the brightness is easier to guarantee. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of the starry sky sunshade curtain disclosed in an embodiment of the present invention;

[0038] Figure 2 This is a side view of the light guide layer in the sunshade curtain disclosed in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of a light guide layer with a hollowed-out mesh structure in a sunshade curtain disclosed in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of a light guide layer in a sunshade curtain with a strip grid structure disclosed in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the lead wire control system disclosed in an embodiment of the present invention.

[0042] In the figure, the attached figures are labeled as follows:

[0043] 100-Starry Sky Sunshade Curtain;

[0044] 1-Structural frame; 11-Front crossbeam; 12-Rear crossbeam; 13-Guide rail;

[0045] 2-Sunshade assembly; 21-Sunshade; 211-Blackout layer; 212-Light guide layer; 213-Light leakage layer; 22-Front pull panel; 23-Rear roll-up shaft; 24-Blind retraction and raising power system;

[0046] 3-Wire control system; 31-Wire branch one; 32-Electrical interface; 33-Wire branch two; 34-Wire branch three; 35-Wire branch four. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] One of the objectives of this invention is to provide a novel starry sky sunshade curtain to solve the problems existing in the prior art. It not only has a stronger overall structure, but also provides more stable starry sky light intensity and a higher degree of realism in simulating starry sky light.

[0049] Another objective of this invention is to propose the application of the aforementioned starry sky sunshade as a starry sky luminous structure in automobiles.

[0050] Another object of the present invention is to provide a car with the above-mentioned starry sky sunshade on the roof.

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Example 1

[0053] like Figure 1As shown, this embodiment provides a starry sky sunshade 100, including a structural frame 1, a sunshade assembly 2, and a strip-shaped light emitter. The structural frame 1 has a central cutout to provide space for the installation and retraction of the sunshade 21. The sunshade assembly 2 includes the sunshade 21, which is positioned at the central cutout of the structural frame 1. The sunshade 21 includes a light-blocking layer 211, a light-guiding layer 212, and a light-leaking layer 213, which are sequentially stacked. The fixing methods between any two layers include, but are not limited to, bonding and sewing. The edge of the light-guiding layer 212 is exposed at the outer periphery of the sunshade 21 to receive light and guide light for illumination. The light-leaking layer 213 is made of a light-blocking material and has several light-leaking holes. These holes expose corresponding local areas of the light-guiding layer 212, allowing the light from the light-guiding layer 212 to emit starlight, creating a starry sky effect. A strip-shaped light emitter is mounted on the structural frame 1 and located on at least one side of the outer periphery of the sunshade 21. The strip-shaped light emitter is used to emit light to illuminate the edge of the sunshade 21 (i.e., the position where the edge of the light guide layer 212 is exposed), so as to provide a stable strip-shaped light source for the light guide layer 212. After receiving the light source, the light guide layer 212 will guide the light and shine, thereby achieving the above-mentioned starry sky illumination effect.

[0054] The aforementioned starry sky sunshade 100 uses a strip-shaped light emitter as the light source for starlight illumination, which provides more uniform and stable light emission compared to point light sources. By embedding a light guide layer 212 within the sunshade 21 in conjunction with the strip-shaped light emitter, the light guide layer 212 can conduct the light emitted by the strip-shaped light emitter, achieving starlight illumination. This has the advantage of uniform light intensity distribution and avoids the problem of light intensity attenuation due to the extension of the light source emission path, thus improving the realism of starlight illumination simulation. Moreover, the entire starry sky sunshade 100 is based on a light-blocking curtain structure, which not only integrates the functions of a starry sky top and a light-blocking curtain, but also integrates the strip-shaped light emitter and the light guide layer 212 into the sunshade curtain structure, improving the overall integrity of the starlight illumination structure and the ease of assembly and disassembly, thus solving the problem of poor structural integrity inherent in existing point light sources.

[0055] Some feasible implementation methods, such as Figure 3 As shown, the light guide layer 212 is preferably a hollow mesh structure integrally formed from light guide material. In this structure, all the hollow holes have the same shape, including but not limited to triangles, rectangles, rhombuses, and circles. The light guide material used includes, but is not limited to, plastic optical fibers, PS (polystyrene), and PC (polycarbonate). The light guide layer 212 adopts an integrally formed hollow mesh structure or a strip grid structure, so that each intersection point is an integrally formed radial structure. The entire mesh structure is interconnected, which is beneficial for uniform light intensity diffusion. Even if there is a partial break, the light intensity of the light guide layer can still be kept stable and uniform.

[0056] like Figure 2 As shown, the sunshade 21 has a sandwich structure, with the light guide layer 212 located in the middle layer. The sunshade 21 is preferably rectangular, with the edge of the light guide layer 212 fully exposed on either side. This ensures that the outer perimeter of the sunshade 21 has a complete ring of the light guide layer 212 exposed, increasing the light-receiving area of ​​the light guide layer 212 and guaranteeing a starlight-emitting effect.

[0057] In practical applications, the light guide layer 212 can be a single layer or multiple layers can be continuously set.

[0058] Both the light-shielding layer 211 and the light-leaking layer 213 are made of materials with good light-shielding properties, including but not limited to polyester fiber, linen / bamboo fiber, and metal-coated fabrics. The processing methods for the light-leaking holes on the light-leaking layer 213 include, but are not limited to, laser etching.

[0059] In some feasible implementations, it is preferable that all the light-leaking holes on the light-leaking layer 213 have the same shape and size, and the shape includes, but is not limited to, circles, regular polygons, ellipses, etc. The light-leaking holes can be evenly distributed in an array, and the array form includes, but is not limited to, circular arrays, matrices, etc.

[0060] In some feasible implementations, the structural frame 1 is an overall rectangular frame, such as... Figure 1 As shown, it includes a front crossbeam 11, a rear crossbeam 12, and two guide rails 13 placed on both sides. The two guide rails 13 are parallel, and the rear ends of the two guide rails 13 are connected to the two ends of the rear crossbeam 12, respectively. The front ends of the two guide rails 13 are connected to the two ends of the front crossbeam 11, so as to form a rectangular cutout in the middle of the structural frame 1. The rectangular cutout is adapted to the size of the sunshade curtain 21.

[0061] like Figure 1 As shown, the sunshade assembly 2 also includes a front pull plate 22 and a rear roll-up shaft 23. The rear roll-up shaft 23 is rotatably mounted on the rear crossbeam 12 and connected to the rear end of the sunshade 21. The rear roll-up shaft 23 is used to roll up or release the sunshade 21. The front pull plate 22 is located at the front end of the sunshade 21 and is used to pull the sunshade 21. At least one of the front pull plate 22 and the sunshade 21 slides in conjunction with the guide rail 13 to improve the smoothness of the unfolding and retraction of the sunshade 21.

[0062] In some feasible embodiments, it is preferable that guide rail grooves are formed on the inner sides of both guide rails 13, and the two sides of the sunshade curtain 21 are respectively movably embedded into the guide rail grooves of the two guide rails 13 and slide in cooperation with the guide rails 13; a strip-shaped light emitter parallel to the guide rails 13 is installed in the guide rail grooves of both guide rails 13. Preferably, the length of the strip-shaped light emitter is not shorter than the length of the sunshade curtain 21 when it is fully extended ( Figure 1The side length of the sunshade curtain 21 (in the shown curtain state) is designed to ensure that the entire side of the curtain receives light, avoiding blind spots that could result in an incomplete starry sky effect. The guide rail groove is preferably a U-shaped groove, and the strip-shaped light emitter can be fixed within it by adhesive or bolts. With both sides of the sunshade curtain 21 embedded in the guide rail groove, the light from the strip-shaped light emitter can be fully received, preventing light leakage and ensuring optimal illumination.

[0063] To ensure the structural strength of the edge of the sunshade 21 and improve the smoothness of sliding between the two sides of the sunshade 21 and the guide rail 13, the edge of the sunshade 21 is preferably provided with a binding strip, which is embedded in the guide rail groove and slides in cooperation with the guide rail groove. The binding strip is a conventional design in automotive sunshades, and its details will not be elaborated here.

[0064] In some feasible implementations, the starry sky sunshade 100 also includes a lead wire control system 3 disposed on the rear crossbeam 12, such as... Figure 1 and Figure 5 As shown, the lead control system 3 includes a first wire branch 31 and a second wire branch 33. The end of the first wire branch 31 is provided with an electrical interface 32 for connecting to an external command control center. The second wire branch 33 passes through the guide rail groove. One end of the second wire branch 33 is electrically connected to the first wire branch 31, and the other end is electrically connected to the strip light emitter in the corresponding guide rail groove. The second wire branch 33 is respectively passed through the guide rail grooves of the two guide rails 13.

[0065] In some feasible embodiments, the sunshade assembly 2 also includes a retractable curtain power system 24 connected to the rear roll-up shaft 23. The retractable curtain power system 24 is used to drive the rear roll-up shaft 23 to rotate so as to unfold or roll up the sunshade 21 onto the rear roll-up shaft 23. The retractable curtain power system 24 and the rear roll-up shaft 23 are both conventional components in existing vehicle sunshades and belong to mature prior art, so they will not be described in detail here.

[0066] In some feasible implementations, in addition to the strip-shaped light emitters installed in the guide rails 13 on both sides, strip-shaped light emitters can also be installed simultaneously on the rear roll-up shaft 23 and the front pull plate 22. In this case, strip-shaped light emitters are arranged on all four sides of the outer perimeter of the sunshade curtain 21, and preferably, the length of any one strip-shaped light emitter is not shorter than the corresponding side length of the sunshade curtain 21. Based on the above structure of installing strip-shaped light emitters on the rear roll-up shaft 23 and the front pull plate 22, the lead wire control system 3 also includes wire branch three 34, wire branch four 35 and wire branch five (not shown in the figure). One end of wire branch three 34 is electrically connected to wire branch one 31, and the other end is electrically connected to the curtain raising and lowering power system 24.

[0067] One end of wire branch 4 35 is electrically connected to wire branch 1 31, and the other end is electrically connected to the strip light emitter on the rear winding shaft 23; one end of wire branch 5 is movably inserted into the rear winding shaft 23 and electrically connected to wire branch 1 31, and the other end movably passes through the inside of the guide rail 13 and the end of the front pull plate 22 and is electrically connected to the strip light emitter on the front pull plate 22.

[0068] The rear winding shaft 23 has an installation groove along its own axis, and the strip light emitter is embedded in the installation groove; at the same time, the rear edge of the sunshade 21 is embedded in the installation groove and can be fixed in the installation groove by means of interference fit, adhesive or other methods, so as to fully receive the light source emitted by the strip light emitter in the rear winding shaft 23.

[0069] Similarly, the front pull plate 22 has an installation groove along its own axis, and the strip light emitter is embedded in the installation groove; at the same time, the front edge of the sunshade 21 is embedded in the installation groove and can be fixed in the installation groove by means of interference fit, adhesive or other methods, so as to fully receive the light source emitted by the strip light emitter in the front pull plate 22.

[0070] The strip lights on the rear winding shaft 23 and the front pull plate 22 can be fixed by means of adhesive bonding, bolt connection or other methods.

[0071] In some feasible implementations, it is preferred that any strip light emitter includes a flexible circuit board and a plurality of LED beads disposed on the flexible circuit board; the strip light emitter is electrically connected to the corresponding wire branches mentioned above through the flexible circuit board.

[0072] In some feasible implementations, it is preferable that all the strip light emitters in the starry sky sunshade 100 are monochromatic light emitters, which can achieve a monochromatic star effect. Combined with the equal size and uniform distribution design of the light leakage holes, a monochromatic star effect with equal brightness (a sky full of stars) can be achieved.

[0073] In some other embodiments, all the strip light emitters in the starry sky sunshade 100 may be multi-color light emitters, or some of the strip light emitters may be monochromatic light emitters, while the remaining strip light emitters may be multi-color light emitters. Multi-color light emitters include, but are not limited to, RGB light sources, which can achieve both color-changing and single-source illumination. Combined with the equal-sized and evenly distributed design of the light-leaking holes, a starry sky effect with equal brightness in monochromatic or color-changing (multi-color) modes can be achieved.

[0074] In some feasible implementations, the effect of starry sky breathing and twinkling, as well as the effect of shooting stars passing through the starry sky, can also be achieved by controlling the on-off sequence of each LED in the strip light emitter (for example, multiple LEDs lighting up, dimming and turning off in sequence).

[0075] The aforementioned starry sky sunshade 100 can be used as a starry sky luminous structure in automobiles. The starry sky sunshade 100 is primarily installed in the sunroof area of ​​the car's roof to achieve a starry sky ceiling effect. Its specific working principle is as follows:

[0076] Strip lights are installed on the front crossbeam 11, the rear crossbeam 12, and the two guide rails 13 placed on both sides of the structural frame 1.

[0077] The lead wire control system 3 is fixed on the rear crossbeam 12. Two wire branches 33 are electrically connected from the ends of the guide rails 13 on both sides to the strip light emitters in the guide rail grooves, so as to realize the power supply and control logic of the strip light emitters in the guide rails 13. The wire branch 34 is electrically connected to the motor electrical interface of the curtain retraction power system 24 to supply power to the curtain retraction power system 24 and control the sunshade 21 to unfold or roll up onto the rear retraction shaft 23. The wire branch 31 is connected to the vehicle's command control center through the electrical interface 32 to obtain power and various signal commands. The fourth wire branch 35 is electrically connected to the strip light emitter located on (or inside) the rear take-up shaft 23 to achieve power supply and control; the strip light emitter inside the front pull plate 22 is electrically connected to the fifth wire branch, which passes through the end of the front pull plate 22 and enters the guide rail groove of the guide rail 13, extends to the rear take-up shaft 23, and then enters the tube of the rear take-up shaft 23 through the hole groove on the rear take-up shaft 23. It then extends out to the rear crossbeam 12 through the center hole of the plastic part at the end of the rear take-up shaft 23 and is electrically connected to the first wire branch 31.

[0078] The structural frame 1 of the starry sky sunshade 100 is installed and fixed on the roof inside the car. The starry sky effect composed of light spots on the interior roof is achieved through vehicle command control. By configuring different strip light emitters in the starry sky sunshade 100 or adjusting and switching different light emission modes of the strip light emitters through the vehicle command control center, it is possible to achieve single-color or color-changing brightness star spots (starry sky), starry sky breathing and twinkling effect with brightness changes, and the effect of shooting stars passing through the starry sky.

[0079] Example 2

[0080] This embodiment proposes a starry sky sunshade 100, which differs from Embodiment 1 only in that all the light-leaking holes on the light-leaking layer 213 have the same shape, but are not exactly the same size. The different sizes of the light-leaking holes result in different sizes of the exposed light-guiding layer 212, which directly leads to different brightness levels of the starlight emitted from the light-leaking layer 213. This design can achieve a starry sky illumination effect with varying brightness, resulting in a stronger three-dimensional effect and higher realism.

[0081] The structural frame 1 of the starry sky sunshade 100 is installed and fixed on the roof inside the car. The starry sky effect composed of light spots on the interior roof is achieved through vehicle command control. By configuring different strip light emitters in the starry sky sunshade 100 or by adjusting and switching different light emission modes of the strip light emitters through the vehicle command control center, it is possible to achieve star points (a starry sky) of different brightness in monochrome or color-changing modes, star breathing and twinkling effects with varying brightness, and the effect of shooting stars streaking across the starry sky.

[0082] Example 3

[0083] This embodiment proposes a starry sky sunshade 100, which differs from embodiments 1 and 2 only in that the light guide layer 212 can be a strip grid structure, such as... Figure 4 As shown, this structure has multiple parallel grids, and the grid patterns can be arranged parallel or perpendicular to the guide rail 13 according to actual needs. The strip grid structure can be integrally formed like a mesh structure, or it can be integrated and woven into the fabric layer.

[0084] Example 4

[0085] This embodiment proposes a starry sky sunshade curtain 100, which differs from embodiments 1 to 3 only in that: the light guide layer 212 can be a hollow mesh structure woven from light guide filaments, and the weaving method can refer to the weaving method of warp and weft woven fabric, which will not be described in detail here.

[0086] Example 5

[0087] This embodiment proposes a car in which a starry sky sunshade 100, any one of the embodiments 1 to 4, is installed at the sunroof of the car roof.

[0088] In summary, the beneficial effects of this invention compared to the prior art are as follows:

[0089] (1) Using a strip light source as the light source for starlight emission results in more uniform and stable emission compared to point light sources.

[0090] (2) By embedding a light guide layer in the sunshade and cooperating with the strip light emitter, the light guide layer can conduct the light source emitted by the strip light emitter to realize starlight. It has the advantage of uniform light intensity distribution, which can avoid the problem of light intensity attenuation due to the extension of the light source emission path, thus resulting in poor starlight effect. It can improve the realism of starlight simulation.

[0091] (3) The entire starry sky sunshade curtain is based on the blackout curtain structure as the basic framework. It not only realizes the integration of the starry sky top and the blackout curtain's functions, but also integrates the strip light emitter and light guide layer into the blackout curtain structure, improving the overall integrity of the starry sky light-emitting structure and the ease of disassembly and assembly, and solving the problem of poor structural integrity of existing point light sources.

[0092] (4) Strip light sources can be set on the guide rails, front pull plate and rear roll-up shaft of the structural frame. The light emission of strip light sources is more uniform than that of point light sources, and subsequent processing is more convenient and flexible.

[0093] (5) Compared with point light sources, which have high heat, large volume and short lifespan, the present invention can disperse strip light sources around the outer periphery of the curtain, which has small space, low heat dissipation, stable brightness, and is easier to control, and the brightness is easier to guarantee.

[0094] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0095] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A starry sky sunshade curtain, characterized in that, Includes a structural frame, a sunshade assembly, and a strip light emitter, wherein: The structural frame includes a front crossbeam, a rear crossbeam, and two guide rails placed on both sides. The two guide rails are parallel, and the rear ends of the two guide rails are respectively connected to the two ends of the rear crossbeam. The front ends of the two guide rails are respectively connected to the two ends of the front crossbeam to form a rectangular hollow in the middle of the structural frame. Guide rail grooves are opened on the inner side of the two guide rails. The sunshade assembly includes a sunshade, a front pull panel, and a rear roll-up shaft. The sunshade is positioned within the rectangular cutout and comprises a light-blocking layer, a light-guiding layer, and a light-leaking layer stacked sequentially. The edge of the light-guiding layer is exposed at the outer periphery of the sunshade to receive and guide light. The light-leaking layer has several light-leaking holes to emit light in a star-like pattern. The rear roll-up shaft is rotatably mounted on the rear crossbeam and connected to the rear end of the sunshade. The rear roll-up shaft is used for rolling up or releasing the sunshade. The sunshade curtain; the front pull plate is located at the front end of the sunshade curtain and is used to pull the sunshade curtain; the two sides of the sunshade curtain are respectively movably embedded in the guide grooves of the two guide rails and slide with the guide rails; the light guide layer is a hollow mesh structure integrally formed with light guide material. The integrally formed hollow mesh structure makes each longitudinal and transverse intersection point an integrally formed radial structure. The entire mesh structure is interconnected, which is conducive to uniform light intensity diffusion. Even if there is a partial break, the light intensity of the light guide layer can still be kept stable and uniform. The strip-shaped light emitter is installed in the guide groove of each of the two guide rails. The strip-shaped light emitter is arranged parallel to the guide rail. The strip-shaped light emitter is also provided on the rear roll-up shaft and the front pull plate. The strip-shaped light emitter is used to emit light to illuminate the edge of the sunshade, so as to provide a strip-shaped light source for the light guide layer. The light guide layer can conduct the light source emitted by the strip-shaped light emitter to achieve starlight illumination. The outer peripheral edge of the sunshade has a full ring of light guide layer exposed. The sunshade assembly also includes a curtain retraction power system connected to the rear roll-up shaft. The curtain retraction power system is used to drive the rear roll-up shaft to rotate so as to unfold or roll up the sunshade onto the rear roll-up shaft. It also includes a lead wire control system disposed on the rear crossbeam, which includes: One branch of the wire has an electrical interface at its end for connecting to an external command and control center. A second wire branch is inserted into the guide rail groove. One end of the second wire branch is electrically connected to the first wire branch, and the other end is electrically connected to the strip light emitter in the corresponding guide rail groove. The second wire branch is inserted into the guide rail groove of each of the two guide rails. The third wire branch has one end electrically connected to the first wire branch and the other end electrically connected to the curtain raising and lowering power system; The fourth wire branch has one end electrically connected to the first wire branch and the other end electrically connected to the strip light emitter on the rewind shaft. The fifth wire branch has one end movably inserted into the rear winding shaft and electrically connected to the first wire branch, and the other end movably inserted through the inside of the guide rail and the end of the front pull plate and electrically connected to the strip light emitter on the front pull plate.

2. The starry sky sunshade curtain according to claim 1, characterized in that, The light guide layer can be replaced with a strip grid structure.

3. The starry sky sunshade curtain according to claim 1, characterized in that, All the light-leaking holes on the light-leaking layer are the same in shape and size; Alternatively, all the light-leaking holes on the light-leaking layer may have the same shape, but not be exactly the same size.

4. The starry sky sunshade curtain according to any one of claims 1 to 3, characterized in that, The light guide layer in the sunshade curtain may be provided in one layer or in multiple layers.

5. The starry sky sunshade curtain according to claim 1, characterized in that, Each of the strip light emitters includes a flexible circuit board and a plurality of LED beads disposed on the flexible circuit board; All of the strip-shaped light emitters are monochromatic light emitters; or, all of the strip-shaped light emitters are multicolor light emitters; or, of all the strip-shaped light emitters, some are monochromatic light emitters and the remaining are multicolor light emitters.

6. The application of the starry sky sunshade as described in any one of claims 1 to 5 as a starry sky luminous structure in a car.

7. An automobile, characterized in that, The car interior roof is equipped with a starry sky sunshade as described in any one of claims 1 to 5.

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