Automobile lighting components, control panels and automobiles

Abstract

The present invention relates to an automotive lighting assembly, comprising: a light source for emitting an initial light beam; a beam splitter structure for receiving the initial light beam and splitting it into parallel light beams; and a light guide structure, the light guide structure including a light-emitting surface for guiding the parallel light beams out from the light-emitting surface. The light-emitting surface is actually illuminated by the light source, and the light emitted by the light source is evenly transmitted to the light-emitting surface through the beam splitter structure and the light guide structure. Therefore, there is no need to distribute LEDs along the contour of the light-emitting surface, nor is there a need for light guides for illumination. Only one light source is required to illuminate the entire light-emitting surface, significantly reducing costs while avoiding the drawbacks of being unable to form a closed loop and uneven illumination.

Description

Technical Field

[0001] The present invention relates to the field of automobile lighting, and in particular to an automobile light-emitting component, a control panel and an automobile. Background Art

[0002] With the development of automotive lighting technology and the improvement of public aesthetic standards, the shapes of vehicle interior signal lights are becoming more and more diverse. Many headlights have different luminous shapes. The commonly used lighting methods are to cover the outline of the luminous shape with LEDs or use light guides for lighting. If the entire outline of the luminous shape is covered with LEDs, a large number of LEDs are required, which greatly increases production costs. If light guides are used to illuminate the outline of the luminous shape, LEDs need to be installed at the head and end of the light guide, which not only cannot form a closed loop, but also will cause bright spots and uneven lighting. Summary of the Invention

[0003] Based on this, it is necessary to provide an automobile light-emitting component, a control panel and an automobile to address the above technical problems, which have the effect of effectively reducing costs while ensuring uniform light emission.

[0004] An automotive lighting assembly, comprising:

[0005] a light source for emitting an initial light beam;

[0006] A light splitting structure, configured to receive the initial light beam and disperse the initial light beam into parallel light beams;

[0007] A light-guiding structure comprises a light-emitting surface for guiding the parallel light beam to be emitted from the light-emitting surface.

[0008] Through the above technical solution, the light emitting surface is actually illuminated by the light source, and the light emitted by the light source is evenly transmitted to the light emitting surface through the light splitting structure and the light guiding structure. Therefore, there is no need to distribute LEDs along the contour of the light emitting surface, nor is there a need to use a light guide for lighting. Only one light source is needed to illuminate the entire light emitting surface, which greatly reduces the cost and avoids the disadvantages of being unable to form a closed loop and uneven light emission.

[0009] In one embodiment, the light splitting structure includes a light splitting refractive surface and a light splitting reflective surface;

[0010] The initial light beam is refracted to the light splitting reflection surface via the light splitting refractive surface, and the initial light beam is reflected by the light splitting reflection surface to form the parallel light beam and enter the light guiding structure.

[0011] In one embodiment, the light-splitting refractive surface and the light-splitting reflective surface are both rotational curved surfaces, and the light-splitting refractive surface and the light-splitting reflective surface have a common rotation axis.

[0012] In one embodiment, the light-guiding structure surrounds the light-splitting structure.

[0013] In one embodiment, the light guide structure further includes a light guide channel and a light guide reflection surface. The light guide reflection surface is located in the light guide channel and is used to guide the parallel light beam along the light guide channel to the light output surface.

[0014] In one embodiment, the light-guiding reflective surface is coated with a reflective film.

[0015] In one embodiment, the light guide channel includes a light guide disc and a light guide ring, the light guide ring is fixedly connected to the periphery of the light guide disc, and the light guide reflection surface is located between the light guide ring and the light guide disc.

[0016] In one embodiment, the light guide ring and the light guide disc are both made of PC material or PMMA material.

[0017] In one embodiment, the automobile control panel includes any one of the above-mentioned automobile lighting components.

[0018] In one embodiment, the automobile comprises the above-mentioned automobile control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of an automobile light-emitting assembly is shown in accordance with an embodiment of the present invention;

[0020] Figure 2 A schematic cross-sectional view of a component of a vehicle according to an embodiment of the present invention;

[0021] Figure 3 FIG. 1 is a schematic diagram illustrating the refraction and reflection paths of light in a light splitting structure according to an embodiment of the present invention.

[0022] Figure numerals: 10, light source; 20, light guiding structure; 21, light guiding reflection surface; 22, light guiding disc; 23, light guiding ring; 30, light splitting structure; 31, light splitting reflection surface; 32, light splitting refractive surface; 33, light splitting carrier; 40, light output surface. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive disclosure of the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the methods or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] With the development of automotive lighting technology and the improvement of public aesthetic standards, the shapes of vehicle interior signal lights are becoming more and more diverse. Many headlights have different luminous shapes. The commonly used lighting methods are to cover the outline of the luminous shape with LEDs or use light guides for lighting. If the entire outline of the luminous shape is covered with LEDs, a large number of LEDs are required, which greatly increases production costs. If light guides are used to illuminate the outline of the luminous shape, LEDs need to be installed at the head and end of the light guide, which not only cannot form a closed loop, but also will cause bright spots and uneven lighting.

[0027] like Figure 1 and Figure 2 As shown, in order to effectively reduce costs while ensuring uniform lighting, the present invention provides an automotive lighting component, including a light source 10 for emitting an initial light beam; a light splitting structure 30 for receiving the initial light beam and dispersing the initial light beam into parallel light beams; and a light guiding structure 20, which includes a light emitting surface 40 for guiding the parallel light beam to be emitted from the light emitting surface 40.

[0028] Through the above technical solution, the light emitting surface 40 is actually illuminated by the light source 10. The light emitted by the light source 10 is evenly transmitted to the light emitting surface 40 through the light splitting structure 30 and the light guiding structure 20. Therefore, there is no need to distribute LEDs along the contour of the light emitting surface 40, nor is there a need to use a light guide for lighting. Only one light source 10 is needed to illuminate the entire light emitting surface 40, which greatly reduces the cost and avoids the disadvantages of being unable to form a closed loop and uneven light emission.

[0029] Light source 10 may be an LED light source, which uses a solid semiconductor chip as a luminescent material. It emits light through the recombination of electrons and holes, offering advantages such as energy conservation, environmental friendliness, and excellent color rendering and response speed. The initial light emitted by light source 10 is scattered light, which scatters outward from light source 10.

[0030] like Figure 2 and Figure 3 As shown, in an optional embodiment, the light splitting structure 30 includes a light splitting refractive surface 32 and a light splitting reflective surface 31. The light splitting refractive surface 32 is in direct contact with the initial light beam. The initial light beam is refracted to the light splitting reflective surface 31 via the light splitting refractive surface 32. The initial light beam is reflected by the light splitting reflective surface 31 to form a parallel light beam and enter the light guiding structure 20. The light splitting refractive surface 32 and the light splitting reflective surface 31 are both rotational curved surfaces, and the light splitting refractive surface 32 and the light splitting reflective surface 31 have a common rotation axis. The initial light emitted by the light source 10 is refracted by the light splitting refractive surface 32 and can be transmitted to the light splitting reflective surface 31 as much as possible, thereby further improving the final luminous effect. The main line of the light splitting reflective surface 31 is an arc. The initial light beam is converted into a parallel light beam through reflection from the light splitting reflective surface 31, and is converted from scattered light into parallel light. The parallel light beam has less loss in the subsequent transmission process, and the light intensity finally transmitted to the light output surface 40 is larger, which can further improve the final luminous effect.

[0031] The beam splitting refractive surface 32 and the beam splitting reflecting surface 31 are both fixedly connected to the beam splitting carrier 33, wherein the beam splitting carrier 33 can be made of PC material or PMMA material. The initial light beam refracted by the beam splitting refractive surface 32 and the parallel light beam reflected by the beam splitting reflecting surface 31 both travel in the beam splitting carrier 33.

[0032] In an optional embodiment, the light guide structure 20 further includes a light guide channel and a light guide reflective surface 21. The light guide reflective surface 21 is located within the light guide channel and is configured to guide the parallel light beam along the light guide channel to the light exit surface 40. The light guide reflective surface 21 is coated with a reflective film, which may be an aluminum-coated mirror or a silver-coated mirror. The light guide reflective surface 21 can change the direction of travel of the parallel light beam. Therefore, the light guide reflective surface 21 is located at an inflection point within the light guide channel, allowing the parallel light beam to travel within the light guide channel with minimal loss.

[0033] The light-guiding channel includes a light-guiding disc 22 and a light-guiding ring 23. In an optional embodiment, the light-guiding channel includes a light-guiding disc 22 and a light-guiding ring 23. The light-guiding disc 22 is in the shape of a disk with a through hole formed in the center, and the thickness of the light-guiding disc 22 is consistent with the thickness of the portion of the light-splitting carrier 33 that outputs the parallel light beam. The light-guiding structure 20 surrounds the light-splitting structure 30. Specifically, the outer periphery of the light-splitting carrier 33 is circular, and its size is adapted to the through hole of the light-guiding disc 22. The inner wall of the through hole of the light-guiding disc 22 is in direct contact with and fixedly connected to the outer periphery of the light-splitting carrier 33. Therefore, when the initial light beam emitted by the light source 10 is converted into a parallel light beam by the light-splitting structure 30, the parallel light beam radially enters the light-guiding structure 20 uniformly along the light-splitting carrier 33 with the light-splitting structure 30 as the center. The light-guiding ring 23 is in the shape of a ring, and one side of the light-guiding ring 23 is integrally provided with the light-guiding disc 22, and the other side is fixedly connected to the light-emitting surface 40. The light-guiding reflective surface 21 is located between the light-guiding ring 23 and the light-guiding disc 22.

[0034] In other optional embodiments, the light guide channel may also include a light guide disc 22 and N light guide rings 23, N≥2, which are arranged according to the requirements for the light guide channel travel route in the specific structure. The light guide rings 23 are integrally arranged with each other, and a light guide reflection surface 21 is arranged between the light guide rings 23 and the light guide rings 23.

[0035] The light guide ring 23 and the light guide disc 22 can both be made of PC material or PMMA material, which can minimize the consumption of parallel light beams during their travel, thereby improving the final lighting effect.

[0036] In an optional embodiment, the light emitting surface 40 and the outer contour of the light-splitting structure 30 are scaled in proportion. When the light emitting surface 40 is a circular closed loop, the outer contour of the light-splitting carrier 33 is also circular. When the light emitting surface 40 is an elliptical closed loop, the outer contour of the light-splitting carrier 33 is also elliptical. Therefore, the parallel light beams received by different sections of the light emitting surface 40 are not much different, which can maximize the uniformity of the light emission of the light emitting surface 40.

[0037] The present invention also provides an automobile control panel, which includes the automobile lighting assembly described in any of the above embodiments, including: a light source 10, for emitting an initial light beam; a spectroscopic structure 30, for receiving the initial light beam and dispersing the initial light beam into a parallel light beam; a light guiding structure 20, the light guiding structure 20 including a light emitting surface 40, for guiding the parallel light beam to be emitted from the light emitting surface 40, so that the light emitted by the light source 10 is evenly transmitted to the light emitting surface 40 through the spectroscopic structure 30 and the light guiding structure 20. Therefore, there is no need to distribute LEDs along the contour of the light emitting surface 40, nor is there a need to use a light guide for lighting. Only one light source 10 is needed to light the entire light emitting surface 40, which greatly reduces the cost and avoids the disadvantages of being unable to form a closed loop and uneven light emission.

[0038] The present invention further provides a car, which includes the above-mentioned car control panel, and can achieve the advantage of uniformly lighting the light-emitting surface 40 with one light source 10 .

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An automotive light-emitting component, characterized in that: include: a light source for emitting an initial light beam; a light-splitting structure for receiving the initial light beam and dispersing the initial light beam into parallel light beams; the light-splitting structure comprises a light-splitting refractive surface and a light-splitting reflective surface; the initial light beam is refracted by the light-splitting refractive surface to the light-splitting reflective surface, and the initial light beam is reflected by the light-splitting reflective surface to form the parallel light beam and enter the light-guiding structure; the light-splitting refractive surface and the light-splitting reflective surface are both rotational curved surfaces; A light-guiding structure, wherein the light-guiding structure includes a light-emitting surface for guiding the parallel light beam to be emitted from the light-emitting surface; the light-guiding structure also includes a light-guiding channel, wherein the light-guiding channel includes a light-guiding disc and a light-guiding ring, wherein the light-guiding ring is fixedly connected to the periphery of the light-guiding disc, and the light-guiding reflecting surface is located between the light-guiding ring and the light-guiding disc.

2. The automotive lighting assembly according to claim 1, characterized in that: The light emitting surface and the outer contour of the light splitting structure are arranged in equal proportion.

3. The automotive lighting assembly according to claim 1, characterized in that: The light splitting refractive surface and the light splitting reflecting surface have a common rotation axis; the generatrix of the light splitting reflecting surface is an arc.

4. The automotive lighting assembly according to claim 1, characterized in that: The light guiding structure surrounds the light splitting structure.

5. The automotive lighting assembly according to claim 1, characterized in that: The light guide structure further includes a light guide reflective surface, which is located in the light guide channel and is used to guide the parallel light beam along the light guide channel to the light output surface.

6. The automotive lighting assembly according to claim 5, characterized in that: The light-guiding reflective surface is plated with a reflective film.

7. The automotive lighting assembly according to claim 1, characterized in that: The guide disc is in the shape of a disc with a through hole formed in the center, and the thickness of the guide disc is consistent with the thickness of the part of the spectroscopic carrier that outputs the parallel light beam; the periphery of the spectroscopic carrier is circular, and the size is adapted to the through hole of the guide disc, and the inner wall of the through hole of the guide disc is in direct contact with and fixedly connected to the periphery of the spectroscopic carrier.

8. The automotive lighting assembly according to claim 1, characterized in that: The light guide ring and the light guide disc are both made of PC material or PMMA material.

9. A car control panel, characterized in that: The automobile control panel comprises the automobile lighting assembly according to any one of claims 1 to 8.

10. An automobile, characterized in that: The automobile comprises the automobile control panel according to claim 9.

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