Lighting structure, light-emitting device and vehicle

Abstract

This invention relates to a supplementary lighting structure, a light-emitting device, and a vehicle, comprising: a shaped light guide disposed on the inner side of an external luminaire, the two ends of the shaped light guide along its length being a head end and an end end, the end end having a reflective structure for receiving supplementary light rays transmitted from the supplementary light guide and transmitting the supplementary light rays within the shaped light guide through reflection; a supplementary light guide disposed on the side of the shaped light guide opposite to the external luminaire and near the end end; and a supplementary light source assembly configured in conjunction with the supplementary light guide for emitting supplementary light rays into the supplementary light guide, so that the supplementary light rays are transmitted within the supplementary light guide and illuminate the end end of the shaped light guide. This embodiment can achieve supplementary lighting function, the supplementary lighting structure occupies a small space inside the luminaire, and there are no restrictions on the angle or orientation of its arrangement, it does not affect the setting of other functional components inside the vehicle lamp, and it can avoid the formation of bright spots on the surface of the vehicle lamp by directly emitted light.

Description

Technical Field

[0001] This invention relates to the field of lighting design, and in particular to supplementary lighting structures, light-emitting devices, and vehicles. Background Technology

[0002] Currently, due to the widespread use of LEDs in automotive lights and their diverse functions, light-emitting schemes with light guide structures are usually adopted inside the lights.

[0003] Currently, internal light guide designs for headlights typically do not employ supplementary lighting; instead, they only place the light source at the head of the light guide, meaning the incident light source is located at one end of the light guide. However, due to material and light loss, the end of the light guide is usually dimmer than the front, especially when the headlight design is large and the light guide is long, resulting in a significant brightness mismatch between the beginning and end of the light guide. Furthermore, with the increasing prevalence of continuous headlights, the brightness difference between the outer signal light guide end and the light guide end of the continuous headlight is substantial, causing overall aesthetic defects and inconsistent lighting effects. To address this issue, supplementary light intensity could be considered; however, current supplementary lighting solutions are ineffective, occupy significant internal space, have strict requirements for placement angles, and are prone to generating large light spots that negatively impact the overall headlight design. Summary of the Invention

[0004] Therefore, it is necessary to provide a supplementary lighting structure, a light-emitting device, and a vehicle to address the problems of poor internal lighting effect, large space occupation, and easy impact on the shape of traditional vehicle lights.

[0005] A supplementary lighting structure, comprising:

[0006] A shape-guided light is disposed on the inner side of the outer casing of the lamp. The two ends of the shape-guided light along its length are the head end and the end end, respectively. The end end is provided with a reflective structure, which is used to receive the supplementary light rays transmitted from the supplementary light guide and to transmit the supplementary light rays within the shape-guided light through reflection.

[0007] A supplementary light guide is provided on the side of the shaped light guide that is opposite to the external part of the lamp, and is located near the end of the light guide;

[0008] The supplementary light source assembly is configured in conjunction with the supplementary light guide to emit supplementary light rays into the supplementary light guide, so that the supplementary light rays are transmitted within the supplementary light guide and illuminate the end of the shaped light guide.

[0009] In some embodiments, the supplementary lighting assembly includes:

[0010] Circuit board, used to fix the light source;

[0011] A light source is electrically connected to and disposed on the circuit board. The light source is located at the end of the supplementary light guide away from the shaped light guide and is used to transmit light into the supplementary light guide.

[0012] In some embodiments, the supplementary light source assembly further includes a heat sink, which is attached to the circuit board and used to dissipate heat from the circuit board and the light source.

[0013] In some embodiments, the reflective structure is a reflective surface used to reflect the supplementary light rays transmitted from the supplementary light guide and transmit them along the length direction of the shaped light guide.

[0014] In some embodiments, the side of the shaped light guide away from the outer surface of the lamp has a light guide pattern, which is used to change the transmission path of the supplementary light transmitted in the shaped light guide, so that the supplementary light is transmitted towards the end of the shaped light guide closer to the outer surface of the lamp.

[0015] In some embodiments, a transparent decorative ring is also included, disposed between the shaped light guide and the outer casing of the lamp. The surface of the transparent decorative ring is provided with a uniform pattern, which enables the supplementary light transmitted from the shaped light guide to be evenly dispersed on the surface of the transparent decorative ring, and then transmitted to the outer casing of the lamp.

[0016] In some embodiments, a light guide bracket is also included, which is disposed on the side of the shaped light guide away from the outer surface of the lamp, for fixing the supplementary light guide and for blocking the shaped light guide from transmitting light into the lamp.

[0017] A light-emitting device, wherein the light-emitting device is provided with any of the above-described supplementary lighting structures.

[0018] A vehicle includes a vehicle body and the aforementioned light-emitting device, wherein the light-emitting device is disposed at the front of the vehicle body.

[0019] The above-mentioned supplementary lighting structure has at least the following beneficial technical effects:

[0020] This embodiment can achieve supplemental lighting, solving the problem of the end being too dark in the light guide optical structure. Even if the lamp shape is too large or the light guide is too long, it can still effectively supplement the light guide. Since the supplemental light can be transmitted within the entire light guide, the brightness of the beginning and end of the light guide is matched after supplemental lighting, and there is almost no difference in brightness between the end of the light guide and the light guide illumination end of the adjacent lamp, thereby avoiding the generation of overall appearance defects. The lighting effect of the connected outer signal lights and the overall through-type lamp is unified.

[0021] The supplementary lighting structure in this embodiment occupies a small space inside the lamp and has no restrictions on the angle or orientation of its arrangement. It is easy to install and will not affect the design and arrangement of other functional components inside the lamp.

[0022] In this embodiment, the supplementary light guide is located on the side of the styling light guide that faces away from the lamp outer casing, i.e. it is hidden behind the lamp outer casing and cannot be seen. It will not emit light directly to the outside of the lamp, thereby avoiding the formation of bright spots on the surface of the headlight due to direct light emission. The impact on the appearance of the headlight can be minimized. Only a small area of ​​shielding body needs to be set on the side of the styling light guide facing the lamp outer casing to ensure the aesthetic integrity of the overall appearance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a supplementary lighting structure provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the optical path in the supplementary lighting structure;

[0025] In the diagram, 100 is the shaped light guide; 110 is the reflective structure; 120 is the light guide pattern; and 130 is the end face.

[0026] 200. Supplemental light guide;

[0027] 300. Supplemental lighting source assembly; 310. Circuit board; 320. Light source body; 330. Heat sink;

[0028] 400. Transparent decorative ring;

[0029] 500. External supply of lighting fixtures;

[0030] 600. Obstruction;

[0031] 700. Optical guide bracket. Detailed Implementation

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] To facilitate understanding of the present invention, various embodiments as defined by the claims will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings, which include various specific details to aid this understanding, but these details should be considered merely exemplary. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Accordingly, those skilled in the art will recognize that variations and modifications can be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. Furthermore, descriptions of well-known functions and constructions may be omitted for clarity and brevity.

[0034] It will be apparent to those skilled in the art that the following description of various embodiments of the invention is provided for illustrative purposes only and is not intended to limit the invention as defined by the appended claims.

[0035] Throughout the specification and claims of this application, the words “comprising” and “including,” as well as variations thereof, such as “comprising of” and “including,” mean “including but not limited to,” and are not intended to exclude other components, elements, or steps. Features, elements, or characteristics described in connection with a particular aspect, embodiment, or example of the invention are to be understood as applicable to any other aspect, embodiment, or example described herein, unless incompatible therewith.

[0036] It should be understood that the singular forms “a,” “an,” and “the” include plural references unless the context explicitly specifies otherwise. The expressions “comprising” and / or “may comprise” as used in this invention are intended to indicate the presence of a corresponding function, operation, or element, and are not intended to limit the presence of one or more functions, operations, and / or elements. Furthermore, in this invention, the terms “comprising” and / or “having” are intended to indicate the presence of the features, quantities, operations, elements, and components disclosed in the applications, or combinations thereof. Therefore, the terms “comprising” and / or “having” should be understood as implying the additional possibility of one or more other features, quantities, operations, elements, and components, or combinations thereof.

[0037] In this invention, the expression "or" includes any or all combinations of the words listed together. For example, "A or B" can include either A or B, or it can include both A and B.

[0038] It should be understood that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is said to be "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or there may be an intervening element at the same time.

[0039] The terms "up," "down," "left," and "right" mentioned in the text are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms (such as those defined in common dictionaries) should be interpreted as having the meaning consistent with the relevant field and the context of this specification, and should not be interpreted in an idealized or overly formal sense unless expressly defined herein. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a supplementary lighting structure is provided, comprising:

[0042] A shaping light guide 100 is disposed on the inner side of the outer part 500 of the lamp. The two ends of the shaping light guide 100 in the length direction are the head end and the end end, respectively. The end end is provided with a reflective structure 110. The reflective structure 110 is used to receive the supplementary light rays transmitted from the supplementary light guide 200 and to transmit the supplementary light rays in the shaping light guide 100 through reflection.

[0043] The supplementary light guide 200 is disposed on the side of the shaped light guide 100 that is opposite to the external 500 of the lamp fixture, and is disposed near the end of the light guide 200.

[0044] The supplementary light source assembly 300 is configured in conjunction with the supplementary light guide 200 to emit supplementary light rays into the supplementary light guide 200, so that the supplementary light rays are transmitted within the supplementary light guide 200 and illuminate the end of the shaping light guide 100.

[0045] Specifically, the outer luminaire 500 is an optical structure close to the outermost light-emitting surface of the luminaire. When the supplementary light source assembly 300 is lit, the emitted light can be transmitted within the supplementary light guide 200 and illuminate the end of the shaping light guide 100. The reflective structure 110 at the end receives the supplementary light from the supplementary light guide 200 and transmits the supplementary light within the shaping light guide 100 through reflection. The supplementary light within the shaping light guide 100 finally passes through the outer luminaire 500 and is scattered outward.

[0046] This embodiment can achieve supplementary lighting function, solving the problem of the end of the light guide optical structure being too dark. Even if the lamp shape surface is too large and the shape light guide 100 is too long, it can still effectively supplement the light. Since the supplementary light can be transmitted within the entire shape light guide 100, the brightness of the beginning and end of the shape light guide 100 is matched after supplementary lighting, and the brightness comparison between the end of the shape light guide 100 and the light guide emission end of the adjacent lamp is almost the same, thereby avoiding the generation of overall appearance defects, and the lighting effect of the connected outer signal lights and the overall through-type lamp is unified.

[0047] The supplementary lighting structure in this embodiment occupies a small space inside the lamp and has no restrictions on the angle or orientation of its arrangement. It is easy to install and will not affect the design and arrangement of other functional components inside the lamp.

[0048] In this embodiment, the supplementary light guide 200 is located on the side of the styling light guide 100 that faces away from the lamp outer cover 500, i.e. it is hidden behind the lamp outer cover 500 and cannot be seen. It will not emit light directly to the outside of the lamp, thereby avoiding the formation of bright spots on the surface of the headlight by directly emitted light. The impact on the appearance of the headlight can be minimized. Only a small area of ​​shielding body 600 needs to be set on the side of the styling light guide 100 facing the lamp outer cover 500 to ensure the aesthetic integrity of the overall appearance.

[0049] refer to Figure 1 In some embodiments, the supplementary lighting source assembly 300 includes:

[0050] Circuit board 310 is used to fix the light source 320;

[0051] The light source 320 is electrically connected to and disposed on the circuit board 310. The light source 320 is disposed at the end of the supplementary light guide 200 away from the shaping light guide 100, and is used to transmit light into the supplementary light guide 200.

[0052] Specifically, the circuit board 310 is used to fix the light source 320 and supply power to the light source 320. After being powered on, the light source 320 can directly transmit light into the supplementary light guide 200. In this embodiment, the supplementary light source assembly 300 is located on the side of the styling light guide 100 that is away from the lamp outer casing 500, and the light source 320 is located at the end of the supplementary light guide 200 that is away from the styling light guide 100. That is, the light source 320 is completely hidden behind the lamp outer casing 500 and cannot be seen, thus eliminating the possibility of directly emitting light to the outside of the lamp, thereby completely avoiding the formation of bright spot defects on the surface of the headlight by directly emitted light, and having no impact on the appearance of the headlight.

[0053] refer to Figure 1 In some embodiments, the supplementary lighting assembly 300 further includes a heat sink 330, which is fitted to the circuit board 310 and used to dissipate heat from the circuit board 310 and the light source 320. The heat sink 330, fitted to the circuit board 310, provides efficient heat dissipation for both the circuit board 310 and the light source 320; and its fitted configuration with the circuit board 310 does not occupy extra space inside the headlight and does not affect the design and arrangement of other functional components inside the headlight.

[0054] refer to Figure 2In some embodiments, the reflective structure 110 is a reflective surface, and the reflective surface is formed with patterns or textures to reflect the supplementary light rays transmitted from the supplementary light guide 200 and transmit them along the length direction of the shape light guide 100.

[0055] When the supplementary light source assembly 300 is lit, the emitted light can be transmitted within the supplementary light guide 200 and illuminate the end of the shaping light guide 100. At this time, the end forms a textured reflective surface to receive the supplementary light from the supplementary light guide 200 and, through reflection, transmit the supplementary light along the length of the shaping light guide 100 to the head end of the shaping light guide 100 and fill the entire shaping light guide 100. Finally, the supplementary light within the shaping light guide 100 passes through the lamp outer sleeve 500 and is scattered outward.

[0056] In this embodiment, a reflective surface is provided. The patterns or textures on the reflective surface have the function of adjusting the light, ensuring that all the light entering the shaping light guide 100 can be transmitted from the end of the shaping light guide 100 along the length direction to the beginning. This also prevents the supplementary light from escaping from other parts or directions, fully ensuring the utilization rate of the supplementary light. Ultimately, the supplementary light fills the entire shaping light guide 100, with no difference in brightness between the beginning and end of the shaping light guide 100, and almost no difference in brightness between the end of the shaping light guide 100 and the light guide illumination end of the adjacent lamp. The patterns or textures on the reflective surface can also prevent light concentration, thereby reducing the probability of light spots. Based on the above two reasons, this embodiment further reduces the probability of appearance defects and has a good lighting effect.

[0057] refer to Figure 2 In some embodiments, the shape light guide 100 has a light guide pattern 120 on the side of the light fixture outer casing 500 away from the light fixture, which is used to change the transmission path of the supplementary light rays transmitted in the shape light guide 100, so that the supplementary light rays are transmitted towards the end face of the shape light guide 100 closer to the light fixture outer casing 500.

[0058] Specifically, after the supplementary light source assembly 300 is lit, the emitted light can be transmitted within the supplementary light guide 200 and illuminate the end of the shaped light guide 100. At this time, the light guide pattern 120 on the end face of the shaped light guide 100 away from the lamp outer casing 500 can guide all the light entering the shaped light guide 100 towards the end face of the shaped light guide 100 near the lamp outer casing 500 and emit it outward from the lamp outer casing 500, thereby achieving the supplementary lighting effect. After supplementary lighting, the brightness of the beginning and end of the shaped light guide 100 is matched when viewed from outside the vehicle headlight. The light guide pattern 120 can prevent the supplementary light from being emitted from other parts or directions, so as to make full use of the supplementary light. The brightness contrast between the shaped light guide 100 and the light guide emission end of the adjacent lamp is completely consistent, thereby ensuring the lighting effect.

[0059] refer to Figure 2In some embodiments, the end of the shaping light guide 100 is patterned or textured on the end face 130 of the supplementary light guide 200. The pattern or texture on the end face 130 serves to adjust the light, ensuring that all the light in the supplementary light guide 200 is guided into the shaping light guide 100, while preventing the supplementary light from escaping from other parts or directions, thus maximizing the utilization rate of the supplementary light. The pattern or texture on the reflective surface also prevents light concentration, thereby reducing the probability of light spots. Based on these two reasons, this embodiment further reduces the probability of appearance defects and provides good lighting performance.

[0060] refer to Figure 2 In some embodiments, a transparent decorative ring 400 is also included, disposed between the shaped light guide 100 and the lamp outer casing 500. The surface of the transparent decorative ring 400 is provided with a uniform pattern, which enables the supplementary light rays transmitted from the shaped light guide 100 to be evenly dispersed on the surface of the transparent decorative ring 400 and then transmitted to the lamp outer casing 500.

[0061] In this embodiment, the transparent decorative ring 400 with uniform pattern can further disperse the supplementary light emitted from the shaped light guide 100 evenly, and finally the brightness of each part of the light-emitting surface formed by the lamp outer cover 500 is uniform, thereby further reducing the probability of appearance defects and the overall lighting effect is better.

[0062] refer to Figure 1 In some embodiments, a light guide bracket 700 is also included, which is disposed on the side of the shaped light guide 100 away from the lamp outer casing 500, for fixing the supplementary light guide 200 and for blocking the shaped light guide 100 from transmitting light into the lamp.

[0063] In this embodiment, the light guide bracket 700 securely fixes the supplementary light guide 200 inside the headlight. On the other hand, the light guide bracket 700 is set to fit the side end face of the shaped light guide 100 away from the external lamp 500, which can block the light in the shaped light guide 100 from being transmitted into the headlight. From the outside of the headlight, the light pattern is concentrated and distinct with clear boundaries, and the light emission effect is excellent.

[0064] In another embodiment of the present invention, a light-emitting device is provided, wherein the light-emitting device is provided with any of the above-described supplementary lighting structures.

[0065] In another embodiment of the present invention, a vehicle is provided, including a vehicle body and the above-mentioned light-emitting device, wherein the light-emitting device is disposed at the front of the vehicle body.

[0066] In this embodiment, the light-emitting device on the vehicle can achieve a supplementary lighting function, solving the problem of the end of the light guide optical structure being too dark. Even if the shape surface of the headlight fixture is too large and the shape light guide 100 is too long, it can still effectively supplement the light. Since the supplementary light can be transmitted within the entire shape light guide 100, the brightness of the beginning and end of the shape light guide 100 is matched after supplementary lighting, and the brightness comparison between the end of the shape light guide 100 and the light guide emission end of the adjacent fixture is almost the same, thereby avoiding the generation of overall appearance defects, and the lighting effect of the connected outer signal lights and the through-type lights is unified.

[0067] The supplementary lighting structure in this embodiment occupies a small space inside the lamp and has no restrictions on the angle or orientation of its arrangement. It is easy to operate and will not affect the design and arrangement of other functional components inside the lamp.

[0068] In this embodiment, the supplementary light guide 200 is located on the side of the styling light guide 100 that faces away from the lamp outer cover 500, i.e. it is hidden behind the lamp outer cover 500 and cannot be seen. It will not emit light directly to the outside of the lamp, thereby avoiding the formation of bright spots on the surface of the headlight by directly emitted light. The impact on the appearance of the headlight can be minimized. Only a small area of ​​shielding body 600 needs to be set on the side of the styling light guide 100 facing the lamp outer cover 500 to ensure the aesthetic integrity of the overall appearance.

[0069] In the above description, although expressions such as "first" and "second" may be used to describe various elements of the invention, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of corresponding elements. The above expressions are used to distinguish one component from another.

[0070] The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. Singular expressions include plural expressions unless there are significant differences in context or approach between them.

[0071] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

[0072] Those skilled in the art will understand that the technical features of the above embodiments can be omitted, added, or combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, and simple transformations that those skilled in the art can conceive of, as well as structural transformations that adapt to and functionally modify the prior art, should be considered within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that although the present invention has been shown and described with reference to various embodiments, those skilled in the art can make various modifications and improvements in form and detail without departing from the concept of the present invention, and without departing from the scope of the invention as defined by the appended claims. All such modifications and improvements fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A supplementary lighting structure, characterized in that, include: A shape-guided light is disposed on the inner side of the outer casing of the lamp. The two ends of the shape-guided light along its length are the head end and the end end, respectively. The end end is provided with a reflective structure. The reflective structure is used to receive the supplementary light from the supplementary light guide and to transmit the supplementary light within the shape-guided light through reflection. The reflective structure is a reflective surface, and a pattern or texture is formed on the reflective surface. A supplementary light guide is provided on the side of the shaped light guide that is opposite to the external part of the lamp, and is located near the end of the light guide; A supplementary light source assembly is configured in conjunction with the supplementary light guide to emit supplementary light rays into the supplementary light guide, so that the supplementary light rays are transmitted within the supplementary light guide and illuminate the end of the shaping light guide; the supplementary light source assembly includes a light source body disposed at the end of the supplementary light guide away from the shaping light guide, for transmitting light rays into the supplementary light guide.

2. The supplementary lighting structure according to claim 1, characterized in that, The supplementary lighting assembly also includes: A circuit board for fixing a light source; the light source is electrically connected to the circuit board and is disposed on the circuit board.

3. The supplementary lighting structure according to claim 2, characterized in that, The supplementary light source assembly also includes a heat sink, which is attached to the circuit board and used to dissipate heat from the circuit board and the light source.

4. The supplementary lighting structure according to claim 1, characterized in that, The side of the shaped light guide away from the outer surface of the lamp has a light guide pattern, which is used to change the transmission path of the supplementary light transmitted in the shaped light guide, so that the supplementary light is transmitted towards the end of the shaped light guide closer to the outer surface of the lamp.

5. The supplementary lighting structure according to claim 1, characterized in that, It also includes a transparent decorative ring, which is disposed between the shaped light guide and the outer casing of the lamp. The surface of the transparent decorative ring is provided with a uniform pattern, which can make the supplementary light transmitted from the shaped light guide evenly dispersed on the surface of the transparent decorative ring, and then transmitted to the outer casing of the lamp.

6. The supplementary lighting structure according to claim 1, characterized in that, It also includes a light guide bracket, which is fitted to the side of the shaped light guide away from the outer surface of the lamp, for fixing the supplementary light guide and for blocking the shaped light guide from transmitting light into the lamp.

7. A light-emitting device, characterized in that, The light-emitting device is provided with a supplementary light structure as described in any one of claims 1-6.

8. A vehicle, characterized in that, It includes a vehicle body and a light-emitting device as described in claim 7, wherein the light-emitting device is disposed at the front of the vehicle body.

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