Light guide structure of vehicle lamp and vehicle

Abstract

The utility model provides a light guide structure of a vehicle lamp and a vehicle, and relates to the technical field of vehicle lighting devices, and the light guide structure comprises a light guide shell and a first lamp wave. An opening is formed in one side of the light guide shell and serves as a light incident end, a transparent part is arranged on the side, away from the opening, of the light guide shell and serves as a light emergent end, and a first light constraint structure and a second light constraint structure are arranged on the two opposite sides of the transparent part respectively; the first lamp wave is arranged on the outer side of the light guide shell, and a third light constraint structure is arranged on the light inlet side of the first lamp wave and arranged on the light outlet side of the transparent part. According to the embodiment provided by the invention, light outside the light guide shell enters the concave part through the opening of the light guide shell and passes through the first light constraint structure, the transparent part, the second light constraint structure and the first lamp wave to realize refraction of the light, so that light constraint is completed, and the light emitting uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lighting devices, in particular to a light guide structure of a vehicle lamp and a vehicle. Background Art

[0002] With the rapid development of social economy, people's production and living standards are improving day by day, and vehicles have become an indispensable means of transportation in people's lives or work. In the process of safe driving, the headlights in the vehicle play an important role. They can not only play the role of lighting, but also increase the driver's visual range. For example, during night driving, the vehicle lighting device can illuminate the road ahead of the vehicle to increase the driver's visual range. It can also play a warning role, such as when the vehicle turns or drives in foggy weather, it can remind the other vehicle that it needs to turn or there is a vehicle coming.

[0003] However, the lighting and luminous effects of existing vehicle lighting are poorly uniform, which reduces the user's driving experience. Utility Model Content

[0004] In view of the shortcomings of the existing methods, the present application provides a light-guiding structure of a vehicle lamp and a vehicle, so as to solve the technical problems existing in the prior art that the lighting and luminous effect of vehicle lighting is poorly uniform, thereby reducing the user's driving experience.

[0005] In the first aspect, an embodiment of the present application provides a light guide structure of a vehicle lamp, comprising: a light guide shell, one side of the light guide shell is provided with an opening, the opening serves as a light incident end, the light guide shell is provided with a transparent portion away from the opening side, the transparent portion serves as a light emitting end, and a first light confinement structure and a second light confinement structure are respectively provided on opposite sides of the transparent portion; a first light wave, the first light wave is provided on the outer side of the light guide shell, the light incident side of the first light wave is provided with a third light confinement structure, and the third light confinement structure is provided on the light emitting side of the transparent portion.

[0006] As an optional implementation manner, the first light confining structure is a concave structure and / or a convex structure arranged on the transparent portion.

[0007] As an optional implementation, the second light confining structure is a concave structure and / or a convex structure arranged on the transparent portion.

[0008] As an optional implementation manner, the distance between the first light confining structure and the second light confining structure is greater than or equal to 8 mm and less than or equal to 12 mm.

[0009] As an optional implementation, the light guide shell includes a bottom and a ring wall connected to each other, the ring wall is a ring-shaped structure, and one of two opposite ends of the ring wall is provided with the bottom, and the other end is provided with the opening.

[0010] As an optional implementation, the light-guiding structure of the vehicle lamp further includes: a second light wave, which is arranged on the light-emitting side of the first light wave.

[0011] As an optional implementation, the light-guiding structure of the vehicle lamp further includes: a light source; a reflective bowl, wherein the reflective bowl is arranged on the light-emitting side of the light source and the incident side of the light-guiding shell, and the reflective bowl is also snap-connected with the light-guiding shell; wherein the reflective bowl is provided with a first snap-connecting portion, and the light-guiding shell is provided with a second snap-connecting portion near the opening for snap-connecting with the first snap-connecting portion.

[0012] As an optional implementation, the light guide structure of the vehicle lamp further includes: a lamp housing having a cavity inside; wherein the light guide housing, the first light wave, the second light wave, the light source and the reflective bowl are all arranged in the cavity, the light guide housing is connected to the reflective bowl, and the second light wave is connected to the lamp housing.

[0013] As an optional implementation, the light guide structure of the vehicle lamp further includes: a decorative ring disposed in the cavity, and the decorative ring is connected to the light guide shell.

[0014] In a second aspect, an embodiment of the present application provides a vehicle, comprising: a light-guiding structure of a vehicle lamp as described in any one of the aforementioned embodiments of the present application.

[0015] The present application provides a light guide structure of a vehicle lamp and a vehicle. The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0016] The light outside the light guide shell is emitted into the recess through the opening of the light guide shell, and passes through the first light confinement structure, the transparent part, the second light confinement structure and the first lamp wave to realize the refraction of the light, complete the confinement of the light, and improve the uniformity of the light output.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure inside a light guide structure of a vehicle lamp provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of the inner side of a light guide shell in a light guide structure of a vehicle lamp provided in an embodiment of the present application;

[0021] Figure 3A schematic diagram of the structure of the outer side of a light guide shell in a light guide structure of a vehicle lamp provided in an embodiment of the present application;

[0022] Figure 4 A schematic structural diagram of a first light wave in a light guide structure of a vehicle lamp provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the exterior structure of a light-guiding structure of a vehicle lamp provided in an embodiment of the present application.

[0024] Reference numerals and corresponding descriptions:

[0025] 1: light guide housing; 11: opening; 12: transparent portion; 13: first light confinement structure; 14: second light confinement structure; 15: annular wall;

[0026] 2: first light wave; 21: third light confinement structure;

[0027] 3: Second light wave;

[0028] 4: Light source;

[0029] 5: Reflection bowl;

[0030] 6: lamp housing; 61: cavity;

[0031] 7: Decorative ring;

[0032] 8: PCB board. DETAILED DESCRIPTION

[0033] The present application is described in detail below, and examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. In addition, if the detailed description of the known technology is unnecessary for the features of the present application shown, it will be omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.

[0034] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, elements, components and / or groups thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0035] The inventor of the present application has conducted research and found that there are mainly two types of conventional vehicle lamp structures:

[0036] 1. A combination of thick-walled parts and inner lamp glass is adopted, wherein the light source 4 is directly irradiated onto the thick-walled parts, the light is refracted to the inner lamp glass through the thick-walled parts, and the light is directly projected to the outer lamp glass through the inner lamp glass, completing the predetermined trajectory of the light;

[0037] 2. A combination of a reflective bowl 5 and a thick-walled member is used, wherein the light source 4 reflects light onto the thick-walled member through the reflective bowl 5, and the light is directly projected onto the lamp glass through the refractive surface of the thick-walled member, completing the predetermined trajectory of the light.

[0038] The uniformity of the lighting effect of the above two traditional vehicle lights is closely related to the thickness of the thick-walled parts. In order to achieve lighting uniformity, the thickness of the thick-walled parts is generally greater than 60 mm. Such a thickness cannot achieve a light-weight and thin-walled optical waveguide structure, is not conducive to vibration testing, and has the risk of vibration fracture, which does not conform to the lightweight design concept of vehicles; the thick-walled parts are thicker and larger in volume, resulting in a long injection molding cycle and limited production capacity.

[0039] The light-guiding structure of the vehicle lamp and the vehicle provided in the present application are intended to solve the above-mentioned technical problems of the prior art.

[0040] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments.

[0041] like Figure 1-4 As shown, an embodiment of the present application provides a light guide structure of a vehicle lamp, and the light guide structure includes a light guide shell 1 and a first light wave 2. An opening 11 is provided on one side of the light guide shell 1, and the opening 11 serves as a light incident end. A transparent portion 12 is provided on the side of the light guide shell 1 away from the opening 11, and the transparent portion 12 serves as a light emitting end. A first light confinement structure 13 and a second light confinement structure 14 are provided on opposite sides of the transparent portion 12, respectively; the first light wave 2 is provided on the outer side of the light guide shell 1, and a third light confinement structure 21 is provided on the light incident side of the first light wave 2, and the third light confinement structure 21 is provided on the light emitting side of the transparent portion 12.

[0042] In this embodiment, the light guide shell 1 has a concave portion, and the opening 11 of the light guide shell 1 is connected to the concave portion and the outside. The transparent portion 12 is arranged on the shell wall of the light guide shell 1, and the inner and outer surfaces of the transparent portion 12 are respectively provided with a first light confinement structure 13 and a second light confinement structure 14, that is, the first light confinement structure 13 is arranged in the concave portion, and the second light confinement structure 14 is arranged outside the concave portion. Both the first light confinement structure 13 and the second light confinement structure are optical pattern structures.

[0043] The light-guiding structure of the vehicle lamp provided in the embodiment of the present application is such that light outside the light-guiding shell 1 is emitted into the recess through the opening 11 of the light-guiding shell 1, and passes through the first light-constraining structure 13, the transparent portion 12, the second light-constraining structure and the first light wave 2 to refract the light, thereby completing the constraint of the light and improving the uniformity of the light output.

[0044] Optionally, the transparent portion 12 is made of plastic.

[0045] It should be noted that the specific shapes, structures, quantities and locations of the opening 11, the transparent portion 12, the first light confinement structure 13, the second light confinement structure and the first light wave 2 can be adaptively adjusted according to actual conditions.

[0046] like Figure 1-3 As shown, as an optional implementation, the first light confining structure 13 is a concave structure and / or a convex structure arranged on the transparent portion 12 .

[0047] Based on the foregoing embodiments, in the present embodiment, the first light confinement structure 13 is formed on the inner surface of the transparent portion 12. The first light confinement structure 13 may be recessed in the inner surface of the transparent portion 12, may protrude from the inner surface of the transparent portion 12, or a portion of the first light confinement structure 13 may be recessed in the inner surface of the transparent portion 12, while another portion of the first light confinement structure 13 may protrude from the inner surface of the transparent portion 12.

[0048] In a specific embodiment, the first light confining structure 13 is a sawtooth structure protruding from the inner surface of the transparent portion 12 .

[0049] like Figure 1-3 As shown, as an optional implementation, the second light confining structure 14 is a concave structure and / or a convex structure disposed on the transparent portion 12 .

[0050] Based on the foregoing embodiments, in the present embodiment, the second light confinement structure 14 is formed on the outer surface of the transparent portion 12. The second light confinement structure 14 may be recessed in the outer surface of the transparent portion 12, may protrude from the outer surface of the transparent portion 12, or a portion of the second light confinement structure 14 may be recessed in the outer surface of the transparent portion 12, while another portion of the second light confinement structure 14 may protrude from the outer surface of the transparent portion 12.

[0051] In a specific embodiment, the second light confining structure 14 is a sawtooth structure protruding from the outer surface of the transparent portion 12 .

[0052] As an optional implementation, the distance between the first light confining structure 13 and the second light confining structure 14 is greater than or equal to 8 mm and less than or equal to 12 mm.

[0053] Optionally, the third light confining structure 21 has the same structure as the first light confining structure 13 .

[0054] Optionally, the third light confining structure 21 has the same structure as the second light confining structure 14 .

[0055] Based on the aforementioned embodiments, in the present embodiment, the distance between the first light confinement structure 13 and the second light confinement structure 14 is the closest distance or the farthest distance between the first light confinement structure 13 and the second light confinement structure 14; for example, the minimum distance from the concave portion of the first light confinement structure 13 to the concave portion of the second light confinement structure 14; for another example, the maximum distance from the convex portion of the first light confinement structure 13 to the convex portion of the second light confinement structure 14.

[0056] Optionally, the distance between the first light confinement structure 13 and the second light confinement structure 14 is one of 8 mm, 9 mm, 10 mm, 11 mm and 12 mm, thereby reducing the thickness of the transparent part 12, which is beneficial to vibration testing, avoids vibration fracture, complies with the lightweight design concept of vehicles, reduces volume, and interrupts the injection molding cycle, thereby improving product production capacity.

[0057] like Figure 1-3 As shown, as an optional implementation, the light guide housing 1 includes a bottom and an annular wall 15 connected to each other. The annular wall 15 is an annular structure, and one of the two opposite ends of the annular wall 15 is provided with a bottom, and the other end is provided with an opening 11.

[0058] Based on the above embodiments, in this embodiment, the bottom and the ring wall 15 are integrally formed. The light guide shell 1 is a flat structure. The bottom can be the above transparent part 12. The light guide shell 1 is arranged on a horizontal plane, and the bottom is arranged vertically.

[0059] like Figure 1 and 5 As shown, as an optional implementation, the light guiding structure of the vehicle lamp further includes a second light wave 3 , and the second light wave 3 is arranged on the light emitting side of the first light wave 2 .

[0060] Based on the above embodiments, in this embodiment, the first light wave 2 is an inner light wave, the second light wave 3 is an outer light wave, and the light will be radiated out through the second light wave 3 after passing through the above three light confinement structures.

[0061] like Figure 1 As shown, as an optional implementation, the light guide structure of the vehicle lamp further includes a light source 4 and a reflective bowl 5. The reflective bowl 5 is arranged on the light exit side of the light source 4 and the incident side of the light guide shell 1, and the reflective bowl 5 is also clamped with the light guide shell 1; wherein the reflective bowl 5 is provided with a first clamping portion, and the light guide shell 1 is provided with a second clamping portion for clamping with the first clamping portion near the opening 11.

[0062] Based on the foregoing embodiments, in this embodiment, the reflective bowl 5 has an arc-shaped reflective surface for focusing and reflecting the light emitted by the light source 4 .

[0063] like Figure 1As shown, as an optional implementation, the light guide structure of the vehicle lamp also includes a lamp housing 6, which has a cavity 61 inside; wherein the light guide housing 1, the first light wave 2, the second light wave 3, the light source 4 and the reflective bowl 5 are all arranged in the cavity 61, the light guide housing 1 is connected to the reflective bowl 5, and the second light wave 3 is connected to the lamp housing 6.

[0064] like Figure 1 As shown, as an optional implementation, the light guide structure of the vehicle lamp further includes a decorative ring 7 , which is disposed in the cavity 61 and connected to the light guide shell 1 .

[0065] By adopting the above solution, the light guide structure of the vehicle lamp can be effectively arranged.

[0066] like Figure 1-5 As shown, in a specific embodiment, the light guide structure of the vehicle lamp includes a light guide shell 1, a first lamp glass, a second lamp glass, a reflective bowl 5, a PCB board 8, a light source 4, a decorative ring 7 and a lamp shell 6; a fixing structure for fixing the PCB board 8 is arranged at the bottom of the reflective bowl 5, and the fixing structure fixes the PCB board 8 on the reflective bowl 5 through a nut and a mounting plate; a snap buckle for snapping the light guide shell 1 is arranged at the top of the reflective bowl 5, and a wing snap buckle is arranged at the bottom of the light guide shell 1, and the wing snap buckle on the light guide shell 1 is snapped with the snap buckle of the reflective bowl 5 to form an inverted buckle, thereby ensuring the stability of the assembly of the light guide shell 1 and the reflective bowl 5.

[0067] The side of the reflective bowl 5 is provided with screw holes for fixing to the decorative ring 7. After the reflective bowl 5 and the PCB board 8 are fixed by nuts and mounting plates, the light guide shell 1 is fixed to the card interface at the top of the reflective bowl 5 by means of wing buckles, and then the assembled structural components are screwed to the decorative ring 7 through the screw holes designed on the side of the reflective bowl 5; the top of the decorative ring 7 is provided with a card connection portion for card connection with the first lamp glass, and a wing buckle is designed at the bottom of the inner lamp glass 4. The card connection structure between the first lamp glass and the decorative ring 7 is set to be front and back buckled, and the wing buckle on the first lamp glass is carded with the card connection portion of the decorative ring 7 to form an inverted buckle, thereby ensuring the reliable assembly of the decorative ring 7 and the first lamp glass and preventing light leakage.

[0068] After the above structure is assembled, it also needs to be connected to the lamp housing 6. The decorative ring 7 is provided with screw holes and guide columns for fixing on the lamp housing 6. The lamp housing 6 is provided with bolt columns and guide grooves matching therewith. The decorative ring 7 and the lamp housing 6 are pre-assembled through the guide columns and guide grooves, and the screws are installed and fixed through the screw holes and bolt columns. After the above matching installation is completed, the PUR glue is injected through the glue groove designed for the lamp housing 6 itself and pressed and bonded with the adhesive ribs of the second lamp glass itself, and then the screws are driven into the thin wall of the screw hole reserved in the lamp housing 6 and locked with the bolts reserved in the second lamp glass, thereby completing the installation and matching of the multi-layer light guide structure of the front combination lamp of the utility model.

[0069] In this embodiment, the light source 4 is arranged on the PCB board 8 and is projected onto the reflective bowl 5 in the form of side light emission. The reflective bowl 5 is provided with a reflective concave surface inside. After the light is emitted by the light source 4 and reflected by the reflective bowl 5, the light is reflected and constrained by the reflective concave surface inside the reflective bowl 5, and the light is constrained and reflected into the light guide shell 1; the first light constraining structure 13 is arranged in the light guide shell 1, and the light reflected by the reflective bowl 5 is refracted through the first light constraining structure 13 of the light guide shell 1, and the constrained light is conducted inside the light guide shell 1; the second light constraining structure 14 is arranged on the outer surface of the light guide shell 1, and the light beam is conducted in the light guide shell 1, and when passing through the second light constraining structure 14 outside the light guide shell 1, secondary refraction occurs, and the constrained light is projected to the first lamp glass; the inner surface of the first lamp glass is provided with a third light constraining structure 21, and when the light enters the first lamp glass, it passes through the third light constraining structure 21 and refracts, and the constrained light is conducted in a straight line inside the first lamp glass and then projected to the second lamp wave 3.

[0070] Based on the same inventive concept, an embodiment of the present application provides a vehicle, comprising the light-guiding structure of the vehicle lamp of any one of the aforementioned embodiments of the present application.

[0071] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0072] Light outside the light guide shell 1 is emitted into the recess through the opening 11 of the light guide shell 1, and passes through the first light confinement structure 13, the transparent portion 12, the second light confinement structure and the first light wave 2 to refract the light, thereby completing the confinement of the light and improving the uniformity of the light output.

[0073] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0074] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0075] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0076] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0077] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A light guide structure of a vehicle lamp, characterized in that: include: A light guide shell (1), wherein an opening (11) is provided on one side of the light guide shell (1), the opening (11) serving as a light incident end, a transparent portion (12) is provided on a side of the light guide shell (1) away from the opening (11), the transparent portion (12) serving as a light exit end, and a first light confinement structure (13) and a second light confinement structure (14) are respectively provided on opposite sides of the transparent portion (12); A first light wave (2), the first light wave (2) is arranged on the outside of the light guide shell (1), a third light confinement structure (21) is arranged on the light incident side of the first light wave (2), and the third light confinement structure (21) is arranged on the light exit side of the transparent portion (12).

2. The light guide structure of the vehicle lamp according to claim 1, characterized in that: The first light confining structure (13) is a concave structure and / or a convex structure arranged on the transparent portion (12).

3. The light guide structure of a vehicle lamp according to claim 1 or 2, characterized in that: The second light confining structure (14) is a concave structure and / or a convex structure arranged on the transparent portion (12).

4. The light guide structure of the vehicle lamp according to claim 3, characterized in that: The distance between the first light confining structure (13) and the second light confining structure (14) is greater than or equal to 8 millimeters and less than or equal to 12 millimeters.

5. The light guide structure of a vehicle lamp according to claim 1, characterized in that: The light guide shell (1) comprises a bottom and an annular wall (15) which are connected to each other; the annular wall (15) is an annular structure; one of the two opposite ends of the annular wall (15) is provided with the bottom, and the other end is provided with the opening (11).

6. The light guide structure of a vehicle lamp according to claim 1, characterized in that: Also includes: The second light wave (3) is arranged on the light emitting side of the first light wave (2).

7. The light guide structure of a vehicle lamp according to claim 6, characterized in that: Also includes: Light source (4); A reflective bowl (5), the reflective bowl (5) being arranged on the light exit side of the light source (4) and the incident side of the light guide shell (1), the reflective bowl (5) being also snap-fitted to the light guide shell (1); The reflective bowl (5) is provided with a first clamping portion, and the light guide shell (1) is provided with a second clamping portion near the opening (11) for clamping with the first clamping portion.

8. The light guide structure of the vehicle lamp according to claim 7, characterized in that: Also includes: A lamp housing (6) having a cavity (61) therein; The light guide shell (1), the first light wave (2), the second light wave (3), the light source (4) and the reflective bowl (5) are all arranged in the cavity (61); the light guide shell (1) is connected to the reflective bowl (5), and the second light wave (3) is connected to the lamp shell (6).

9. The light guide structure of the vehicle lamp according to claim 8, characterized in that: Also includes: A decorative ring (7) is arranged in the cavity (61), and the decorative ring (7) is connected to the light guide shell (1).

10. A vehicle, characterized in that: include: At least one light guide structure of a vehicle lamp according to any one of claims 1 to 9.

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