Automotive rear lamp and lighting assembly therefor, automotive vehicle

Abstract

The utility model belongs to the technical field of automobile lighting, specifically relates to a car tail light and lighting assembly thereof, and the car tail light comprises a lamp house, a lamp plate is arranged in the lamp house, position light source and high -level brake light light source are integrally arranged on the lamp plate, the light direction of high -level brake light light source is correspondingly provided with high -level brake light light guide, the light direction of position light source is correspondingly provided with position light guide, and the position light source is arranged in the vertical direction with the light emitting surface of position light guide and is misaligned, the optical structure that makes light at least twice reflection is formed in position light guide, so that the light from position light source is shot from the light emitting surface after turning.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology, and particularly relates to an automotive taillight and its lighting components, and an automobile. Background Technology

[0002] With the development of automotive industrial design, especially in order to cater to more streamlined and dynamic body shapes, the design of car taillights is evolving towards a flatter and narrower shape. This trend directly leads to increasingly compact usable space inside the taillights, posing a severe challenge to the layout of internal optical structures and electronic components.

[0003] In traditional car taillight designs, as shown in the attached... Figure 1 As shown, when the internal space is relatively ample, the position lights and high-mounted brake lights are typically arranged vertically (position lights on top), each equipped with an independent dedicated circuit board and a corresponding independent light guide structure. The light guide structures are physically separated by light-blocking brackets to prevent light leakage. However, for narrow-body taillights, the internal height space is extremely limited, making this vertically separated assembly mode based on independent circuit boards impractical. An alternative readily apparent to those skilled in the art is to arrange the position lights and high-mounted brake lights vertically side-by-side at the bottom. However, due to design requirements, the emitting surface of the position lights remains at the top, while the light source can only be installed at the bottom. In such a confined space, it is impossible to guide the light from the lower position light source to the upper emitting surface.

[0004] Therefore, how to overcome the above difficulties and complete the assembly of position lights and high-mounted brake lights in the narrow space of a narrow-body taillight is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one automotive taillight and its lighting components, and an automotive vehicle.

[0007] In a first aspect, embodiments of this disclosure provide an automotive taillight, including: Lamp housing; A lamp panel is disposed inside the lamp housing, and the lamp panel integrates a position light source and a high-position brake light source; The light emission direction of the high-position brake light source is correspondingly provided with a high-position brake light guide. The position light source is provided with a position light guide corresponding to the light emission direction, and the position light source is arranged vertically offset from the light emission surface of the position light guide. The position light guide has an optical structure that causes light to be reflected at least twice, so that the light from the position light source is deflected and emitted from the light-emitting surface.

[0008] In one alternative embodiment, the optical structure includes a primary light guide surface for the initial transmission of light, a secondary light guide surface for receiving and reflecting light from the primary light guide surface, and a tertiary light guide surface for receiving and reflecting light from the secondary light guide surface to guide it out.

[0009] In one optional embodiment, a light-blocking bracket is provided between the position light guide and the high-position brake light guide.

[0010] In one optional embodiment, the vertical distance H between the lower edge of the position light emitting surface and the upper edge of the high-position brake light emitting surface is ≤ 5mm.

[0011] In one optional implementation, the position light source and the high-position brake light source are surface-mount LEDs.

[0012] Secondly, embodiments of this disclosure also provide a lighting assembly for automotive taillights, comprising: The light panel is equipped with position light sources and high-position brake light sources; The high-mounted brake light guide covers the light source of the high-mounted brake light. The position light guide covers the position light source accordingly; The position light guide is vertically offset from the position light source, and has an internal optical structure that causes light to be reflected at least twice, so that the light from the position light source is deflected and emitted from its light-emitting surface.

[0013] In one alternative embodiment, the optical structure includes a primary light guide surface for the initial transmission of light, a secondary light guide surface for receiving and reflecting light from the primary light guide surface, and a tertiary light guide surface for receiving and reflecting light from the secondary light guide surface to guide it out.

[0014] In one optional embodiment, a light-blocking bracket is provided between the position light guide and the high-position brake light guide.

[0015] In one optional embodiment, the vertical distance H between the lower edge of the position light emitting surface and the upper edge of the high-position brake light emitting surface is ≤ 5mm.

[0016] Thirdly, embodiments of this disclosure also provide an automobile, including a vehicle body, on which the above-mentioned automobile taillights are provided, or the rear of the vehicle body is equipped with the above-mentioned automobile taillight lighting components.

[0017] The beneficial effects of this utility model are that the taillight integrates the position light source and the high-position brake light source on the same light panel, saving assembly space; at the same time, by designing an optical structure in the position light guide that enables light to be reflected at least twice, the light from the low-position position light source is successfully deflected and guided to the high-position light-emitting surface, ensuring the realization of the position light function and the light distribution requirements.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of a car taillight as a comparison. Figure 2 A perspective view of a car taillight provided in an embodiment of this disclosure; Figure 3 This is a cross-sectional view of a car taillight provided in an embodiment of this disclosure.

[0022] In the picture: 100. Lamp housing; 200. Lamp panel; 210. Position light source; 220. High-position brake light source; 300. High-position brake light guide; 400. Position light guide; 410. Optical structure; 411. Primary light guide surface; 412. Secondary light guide surface; 413. Tertiary light guide surface; 500. Light-emitting surface; 600. Light-blocking bracket. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0026] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0027] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0028] Research has revealed the following drawbacks of existing technologies: (see attached) Figure 1 As shown, when the internal space is relatively ample, the position lights and high-mounted brake lights are typically arranged vertically (position lights on top), each equipped with an independent dedicated circuit board and a corresponding independent light guide structure. The light guide structures are physically separated by light-blocking brackets to prevent light leakage. However, for narrow-body taillights, the internal height space is extremely limited, making this vertically separated assembly mode based on independent circuit boards impractical. An alternative readily apparent to those skilled in the art is to arrange the position lights and high-mounted brake lights vertically side-by-side at the bottom. However, due to design requirements, the emitting surface of the position lights remains at the top, while the light source can only be installed at the bottom. In such a confined space, it is impossible to guide the light from the lower position light source to the upper emitting surface.

[0029] Based on the above research, this disclosure provides an automotive taillight that integrates the light sources of the position light and the high-mounted brake light into a shared light panel. To address the specific contradiction of "misalignment between the light source and the light-emitting surface" caused by shape limitations, a specific multi-level reflection optical path is designed inside the position light guide, thereby achieving precise guidance of light energy and extreme compression of functional layout in three-dimensional space.

[0030] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] See Figure 1 , Figure 1 This is a traditional automotive taillight layout, with a relatively large internal space. The position lights and high-mounted brake light are located on the upper and lower sides respectively, separated by a light-blocking bracket 600. The position lights and high-mounted brake light are each mounted via independent circuit boards. To accommodate more streamlined and dynamic vehicle body designs, automotive taillight designs are evolving towards flatter and narrower shapes. When the internal space of the taillight is relatively small, the aforementioned position lights and high-mounted brake light cannot be installed.

[0034] See Figure 2 and Figure 3This disclosure provides an automotive taillight, including a lamp housing 100. The lamp housing 100 serves as the main structural component and external enclosure of the entire taillight, its shape matching the rear design of the vehicle. It is typically made of plastic using injection molding and has internal cavities and mounting structures for accommodating other components. A lamp plate 200 is fixedly mounted within the cavity of the lamp housing 100 using screws or clips. The lamp plate 200 is an integrated circuit board, with a position light source 210 and a high-mounted brake light source 220 integrated on its front side (the side facing outwards from the lamp housing 100). This means that two functional light sources that would normally require two separate circuit boards are now combined on a single circuit board, saving assembly space.

[0035] See also Figure 3 Above the high-mounted brake light source 220, a high-mounted brake light guide 300 is correspondingly provided. This high-mounted brake light guide 300 receives the light emitted from the high-mounted brake light source 220 and guides it to the high-mounted brake light emitting area on the outer surface of the taillight, forming a braking signal that meets regulatory requirements. Above the position light source 210, a position light guide 400 is correspondingly provided. Due to the space constraints caused by the taillight design, the position light source 210 and the final light-emitting surface 500 (i.e., its main emitting surface) of the position light guide 400 are vertically misaligned. Specifically, the position light source 210 is actually installed at a lower position, while its light-emitting surface 500 needs to be located at a higher design position. To resolve this contradiction, the position light guide 400 has a specially designed optical structure 410 inside. The optical structure 410 is configured to cause light to be reflected at least twice, resulting in at least two reversals in the light path, and finally emitted from the high-positioned light-emitting surface 500. This ensures the perfect realization of the position lamp function and light distribution requirements even when the light source cannot be ideally arranged.

[0036] See also Figure 3 In some embodiments, the optical structure 410 includes a primary light-guiding surface 411, a secondary light-guiding surface 412, and a tertiary light-guiding surface 413 connected in sequence, which work together to effectively transmit and redirect light. Figure 3As indicated by the middle arrow, the light from the position light source 210 first enters the primary light guide surface 411 of the position light guide 400. The main function of the primary light guide surface 411 is to receive and initially guide the light. It will capture and guide the light into the interior of the light guide with high efficiency, preparing for subsequent reflection. The light guided by the primary light guide surface 411 then reaches the secondary light guide surface 412. The secondary light guide surface 412 is configured as a reflective surface to receive the light from the primary light guide surface 411 and cause it to undergo a first reflection. The light reflected by the secondary light guide surface 412 continues to propagate to the tertiary light guide surface 413. This tertiary light guide surface 413 is also designed as a reflective surface, and its function is to receive the light from the secondary light guide surface 412 and cause it to undergo a second reflection. This final reflection ultimately guides the light path to the main light output surface 500 of the position light guide 400. Thus, the light has completed a zigzag-like transmission path from the low-position light source 210 to the high-position light-emitting surface 500, successfully achieving at least two reflections and effective turning of the light path.

[0037] See also Figure 3 In some embodiments, a light-blocking bracket 600 is provided between the position light guide 400 and the high-position brake light guide 300. The light-blocking bracket 600 is an independent component that is physically inserted and fixed between the adjacent sidewalls of the position light guide 400 and the high-position brake light guide 300. As can be seen from the cross-sectional view, the light-blocking bracket 600 can be designed as a partition with a specific shape, its contour adapting to the grooves or positioning structures on the adjacent sides of the two light guides to ensure the stability and accuracy of the installation. The light-blocking bracket 600 is preferably made of black or opaque engineering plastic. Its main function is to physically block and absorb light, preventing "light crosstalk" between the two light guides. Specifically, when the position light source 210 and the high-position brake light source 220 are lit respectively, some light may be scattered within their respective light guides. If there is no obstruction, this stray light can easily intrude into the adjacent light guide, causing the position light area to have an undesirable red light from the high-mounted brake light, or the high-mounted brake light area to be interfered with by the light from the position light, seriously affecting the purity of their respective light patterns and the independence of their signal functions.

[0038] See also Figure 3 In some embodiments, the lower edge of the light-emitting surface 500 of the position light guide 400 and the upper edge of the light-emitting surface 500 of the high-mounted brake light guide 300 are vertically spaced by a predetermined vertical distance H, which is designed to be less than or equal to 5 mm. By strictly limiting this distance, it is ensured that the two functional optical channels of the position light and the high-mounted brake light can be arranged in parallel with minimal interval, thereby maximizing the use of the limited space inside the lamp housing 100 and meeting the stringent requirements of the narrow-body taillight for thinness.

[0039] See also Figure 3 In some embodiments, the position light source 210 and the high-position brake light source 220 are surface-mount LEDs. The ultra-small size and low profile of surface-mount LEDs are key to integrating two different functional light sources side-by-side with extremely small spacing on a single light panel 200. This is something that traditional plug-in LEDs cannot achieve, directly supporting the compactness goal of this invention.

[0040] See Figure 3 Some embodiments also provide an illumination assembly for automotive taillights, including: a lamp panel 200 on which a position light source 210 and a high-mounted brake light source 220 are disposed; a high-mounted brake light guide 300 correspondingly covering the high-mounted brake light source 220; and a position light guide 400 correspondingly covering the position light source 210; wherein the position light guide 400 is vertically offset from the position light source 210, and has an optical structure 410 formed inside to cause light to be reflected at least twice, so that the light from the position light source 210 is deflected and emitted from its light-emitting surface 500.

[0041] Some embodiments also provide a vehicle, including a vehicle body, on which the vehicle body is provided with the vehicle taillights of the above embodiments, or the rear of the vehicle body is equipped with the vehicle taillight lighting components of the above embodiments.

[0042] In summary, this automotive taillight saves assembly space by integrating the position light source 210 and the high-mounted brake light source 220 onto the same light panel 200. At the same time, by designing an optical structure 410 within the position light guide 400 that enables light to undergo at least two reflections, the light from the low-position position light source 210 is successfully redirected and guided to the high-position light-emitting surface 500, ensuring the realization of the position light function and light distribution requirements.

[0043] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0045] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0046] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A type of automotive taillight, characterized in that, include: Lamp housing (100); The lamp panel (200) is disposed inside the lamp housing (100), and the lamp panel (200) is integrated with a position light source (210) and a high-position brake light source (220). The high-position brake light source (220) is provided with a high-position brake light guide (300) corresponding to the light output direction. The position light source (210) is provided with a position light guide (400) corresponding to the light output direction, and the position light source (210) is arranged in a staggered manner with the light output surface (500) of the position light guide (400) in the vertical direction; The position light guide (400) has an optical structure (410) that causes light to be reflected at least twice, so that the light from the position light source (210) is deflected and emitted from the light-emitting surface (500).

2. The automotive taillight as described in claim 1, characterized in that, The optical structure (410) includes a primary light guide surface (411) for the initial transmission of light, a secondary light guide surface (412) for receiving and reflecting light from the primary light guide surface (411), and a tertiary light guide surface (413) for receiving and reflecting light from the secondary light guide surface (412) so that it is discharged.

3. The automotive taillight as described in claim 1, characterized in that, A light-blocking bracket (600) is provided between the position light guide (400) and the high-position brake light guide (300).

4. The automotive taillight as described in claim 1, characterized in that, The vertical distance H between the lower edge of the light-emitting surface (500) of the position light guide (400) and the upper edge of the light-emitting surface (500) of the high-position brake light guide (300) is ≤5mm.

5. The automotive taillight as described in claim 1, characterized in that, The position light source (210) and the high-position brake light source (220) are surface-mount LEDs.

6. A lighting assembly for automotive taillights, characterized in that, include: The light panel (200) is provided with a position light source (210) and a high-position brake light source (220). The high-mounted brake light guide (300) covers the high-mounted brake light source (220) above it; A position light guide (400) covers the position light source (210) above it; The position light guide (400) is arranged vertically offset from the position light source (210), and has an optical structure (410) inside that causes light to be reflected at least twice, so that the light from the position light source (210) is deflected and emitted from its light-emitting surface (500).

7. The lighting assembly for automotive taillights as described in claim 6, characterized in that, The optical structure (410) includes a primary light guide surface (411) for the initial transmission of light, a secondary light guide surface (412) for receiving and reflecting light from the primary light guide surface (411), and a tertiary light guide surface (413) for receiving and reflecting light from the secondary light guide surface (412) so that it is discharged.

8. The lighting assembly for automotive taillights as described in claim 6, characterized in that, A light-blocking bracket (600) is provided between the position light guide (400) and the high-position brake light guide (300).

9. The lighting assembly for automotive taillights as described in claim 7, characterized in that, The vertical distance H between the lower edge of the light-emitting surface (500) of the position light guide (400) and the upper edge of the light-emitting surface (500) of the high-position brake light guide (300) is ≤5mm.

10. A car, characterized in that, The vehicle body includes a taillight as described in any one of claims 1-5, or a taillight lighting assembly as described in any one of claims 6-9 is installed at the rear of the vehicle body.

Images