Light guide structure for steering lamp and steering lamp

Abstract

The light guide structure comprises an upper light guide strip and a lower light guide strip which are arranged in a spaced mode and emit light through light emitted by a light source. A connecting light guide strip which is connected with the upper light guide strip and the lower light guide strip and used for receiving light rays emitted from the upper light guide strip and the lower light guide strip is arranged between the upper light guide strip and the lower light guide strip, and the light rays emitted outwards from the inner sides of the upper light guide strip and the lower light guide strip can be emitted into the connecting light guide strip again. And the turn light connecting inner cover is lightened by connecting the light guide strip, so that the turn light connecting inner cover part does not need to be independently lightened by using a light source, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to car light technical field especially, relates to a light guide structure for steering lamp and steering lamp. BACKGROUND

[0002] In order to facilitate the structure design in the prior art steering lamp of car light, an entire modular light guide or a light guide strip is used to realize the prompting function of the steering lamp of car, and now, with the gradual development of new energy vehicles, the car light needs to meet other modeling or functional requirements in addition to the original lighting and prompting functions.

[0003] When the "U"-shaped steering lamp emits light as shown in the accompanying drawings, the prior art usually provides a light guide strip on the upper inner cover, the lower inner cover and the connecting inner cover rear end, and then three LED light sources are used to light up the three light guide strips respectively. Figure 1 The prior art steering lamp structure needs to position and install the three light guide strips respectively, which is relatively complex, and multiple light sources are needed to light up the light guide strips, which is relatively high in manufacturing cost and circuit setting. UTILITY MODEL CONTENTS

[0004] The utility model solves the above-mentioned problems in the prior art, and provides a light guide structure for steering lamp and a steering lamp, which is simple in structure, convenient to install, can relatively reduce the number of light sources of the steering lamp and reduce the manufacturing cost.

[0005] The utility model solves the technical problems by the following technical scheme: the light guide structure for steering lamp comprises upper and lower light guide strips which are arranged at intervals and emit light by light emitted by light sources, and an adapter light guide strip which is arranged between the upper and lower light guide strips and connected to the upper and lower light guide strips to receive the light emitted from the upper and lower light guide strips.

[0006] Preferably, the upper and lower light guide strips are respectively provided with light source light inlet ends arranged in the same direction, and the adapter light guide strip is arranged on the side close to the light source light inlet end.

[0007] Preferably, one end of the connecting light guide strip is connected to the lower end side of the upper light guide strip, the other end of the connecting light guide strip is connected to the upper end side of the lower light guide strip, and the connecting light guide strip is connected to the side of the upper light guide strip and the lower light guide strip, thereby avoiding affecting the normal light emitting effect of the upper light guide strip and the lower light guide strip.

[0008] Preferably, the connecting light guide strip is gradually inclined to the left or right in the direction from top to bottom, and the connecting surface of the inclined connecting light guide strip is larger than the connecting surface when the connecting light guide strip is vertically arranged, thereby allowing more light to enter the connecting light guide strip and ensuring the light emitting effect of the connecting light guide strip.

[0009] Preferably, the front end of the connecting light guide strip is provided with an arc-shaped outward convex light exit surface, and when the light in the connecting light guide strip contacts the light exit surface and is refracted outward, the light is diffused outward under the action of the arc-shaped outward convex light exit surface, thereby avoiding the appearance of light spots on the lampshade outside the connecting light guide strip when it is lit, and making the light emission more uniform.

[0010] Preferably, the light exit surface is provided with a plurality of convex portions spaced apart from each other and outwardly convex on the light exit surface, and the plurality of convex portions are arranged in parallel, and the front end of the arc-shaped convex portion is provided with an arc-shaped diffusion surface outwardly convex, thereby further providing the convex portion with the arc-shaped diffusion surface on the basis of diffusing the light through the light exit surface, thereby allowing the light to be refracted and diffused outward in a small range through the arc-shaped diffusion surface, and reducing the distance between the connecting light guide strip and the outer lampshade through the convex portion, thereby allowing more light emitted outward through the connecting light guide strip to be provided on the outer lampshade, thereby further improving the lighting effect of the turn signal lamp connecting inner cover.

[0011] Preferably, the side of the connecting light guide strip close to the light source light entry end gradually decreases from the side far from the light source light entry end, thereby increasing the number of reflections of the light entering the connecting light guide strip in the connecting light guide strip, thereby increasing the number of light emitted to the front end connecting inner cover in the connecting light guide strip, thereby further improving the lighting effect of the turn signal lamp connecting inner cover.

[0012] The application also provides a turn signal lamp comprising the light guide structure for a turn signal lamp according to any one of the above.

[0013] The beneficial effects of this utility model are as follows: This utility model achieves the illumination of the turn signal connecting inner cover by connecting light guide strips, thus eliminating the need for a separate light source to illuminate the turn signal connecting inner cover, saving costs; the inclined setting of the connecting light guide strips allows more light to enter the connecting light guide strips, ensuring the luminous effect of the connecting light guide strips; the front end of the connecting light guide strips has an outward light-emitting surface and a protrusion, which allows the outwardly refracted light to diffuse outwards, making the light emission more uniform; the gradually decreasing size of the connecting light guide strips increases the amount of light emitted from the connecting light guide strips towards the front connecting inner cover, further improving the illumination effect of the turn signal connecting inner cover. Attached Figure Description

[0014] Figure 1 A schematic diagram of the U-shaped turn signal lamp cover;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged view of section A;

[0017] Figure 4 This is a light path diagram for connecting the light rays within the light guide strip.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Upper light guide strip, 2. Lower light guide strip, 3. Connecting light guide strip, 4. Light source entrance end, 5. Outer light surface, 6. Protrusion, 7. Upper inner cover, 8. Lower inner cover, 9. Connecting inner cover. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] See attached document Figure 1 and Figure 2 As shown: In order to achieve the attached Figure 1 The "U"-shaped turn signal shown in the illustration provides uniform illumination. This embodiment discloses a turn signal including a light guide structure, specifically comprising an upper light guide 1 and a lower light guide 2 spaced apart and emitting light through a light source, respectively; wherein, the upper light guide 1 is located at the lower light guide 2. Figure 1 The upper inner cover 7 is located at the rear end, and the lower light guide 2 is located at the rear end of the lower inner cover 8. Specifically, light source input end 4 is provided on the upper light guide 1 and the lower light guide 2 respectively. In use, LED light sources are respectively set on the outside of the light source input end 4 of the upper light guide 1 and the lower light guide 2, and light is shone into the upper light guide 1 and the lower light guide 2 through the LED light sources.

[0022] As Figure 2 shown, in order to achieve the connection cover 9 part of the light emitting, the embodiment is provided with the connection between the upper light guide strip 1 and the lower light guide strip 2 respectively with the upper light guide strip 1 and the lower light guide strip 2 for receiving the light emitted from the upper light guide strip 1 and the lower light guide strip 2 of the light guide strip 3, wherein, the light guide strip 3, the upper light guide strip 1 and the lower light guide strip 2 in the embodiment are provided by integrated molding, so that the installation of the light guide structure is more convenient, the light guide strip 3 is arranged at the rear end of the connection cover 9, and then in the use process, the light emitted from the inside of the upper light guide strip 1 and the lower light guide strip 2 can be re-emitted into the light guide strip 3, and the light guide strip 3 can make the light emitted to the connection cover 9 so that the connection cover 9 emits light, and then there is no need to use a light source to separately light the part of the light guide strip 3, which can make the circuit structure design of the turn signal lamp more simple and save cost under the premise of ensuring the complete light emitting of the turn signal lamp.

[0023] Further, as Figure 2 shown, in order to avoid the influence on the light emitting effect of the upper light guide strip 1 and the lower light guide strip 2, one end of the light guide strip 3 is connected to the lower end side of the upper light guide strip 1, and the other end of the light guide strip 3 is connected to the upper end side of the lower light guide strip 2; specifically, the upper end of the light guide strip 3 is connected to the lower end side of the upper light guide strip 1 in the embodiment, and the corresponding lower end is connected to the upper end side of the lower light guide strip 2. The upper light guide strip 1 and the lower light guide strip 2 refract the light emitted from the LED light source to the front lampshade and then light up the lampshade, and the light guide strip 3 is connected to the side surface, which can reduce the influence on the normal light emission of the upper light guide strip 1 and the lower light guide strip 2.

[0024] Further, as Figure 2 shown, in order to increase the number of light emitted into the light guide strip 3, the light source light inlet end 4 of the upper light guide strip 1 and the lower light guide strip 2 is arranged in the same direction, and the light source light inlet end 4 of the upper light guide strip 1 and the lower light guide strip 2 in the embodiment is arranged in the right direction, and the corresponding LED light source is arranged outside the right end of the light source light inlet end 4. The same design can make two different LED light sources corresponding to the upper light guide strip 1 and the lower light guide strip 2 arranged on the same circuit board, so that the circuit design is more simple and convenient, and the manufacturing cost is also reduced, and the light guide strip 3 is arranged on one side close to the light source light inlet end 4, so that part of the light emitted from the LED light source into the light guide strip is only reflected or refracted by part of the light guide strip and then emitted to the light guide strip 3, so that the light emitted into the light guide strip 3 is not subjected to multiple reflections or refractions, and the light intensity is good, which can fully ensure the light emitting intensity of the light guide strip 3.

[0025] Further, in order to correspondingly increase the number of light entering the adapter light guide strip 3, the adapter light guide strip 3 is gradually inclined to the left or right in the direction from top to bottom in the embodiment; specifically, as shown in Figure 2 The light guide structure in the embodiment is the light guide structure of the left tail light of the automobile, wherein the adapter light guide strip 3 in the embodiment can be a cylindrical structure, the adapter light guide strip 3 is gradually inclined to the left in the direction from top to bottom, and thus the connection plane of the adapter light guide strip 3 inclined to the left with the upper light guide strip 1 or the lower light guide strip 2 is larger than that of the adapter light guide strip 3 arranged vertically, so that more light can enter the adapter light guide strip 3 from the upper light guide strip 1 or the lower light guide strip 2, and in the case that the positions of the upper light guide strip 1 and the lower light guide strip 2 are fixed, the length of the adapter light guide strip 3 arranged inclined to the left is longer than that of the adapter light guide strip 3 arranged vertically, and correspondingly, more light can be emitted outward from the adapter light guide strip 3, so that the lampshade is better lighted.

[0026] Further, as shown in Figure 3 On the basis of the inclined arrangement of the adapter light guide strip 3, in order to increase the light emitting intensity of the adapter light guide strip 3, the side of the adapter light guide strip 3 close to the light source light inlet end 4 is gradually reduced to the side away from the light source light inlet end 4, because the LED light source in the embodiment is arranged at the right end of the light guide and the adapter light guide strip 3 is gradually inclined to the left in the direction from top to bottom, and thus the upper end of the adapter light guide strip 3 is the side close to the LED light source, that is, the adapter light guide strip 3 in the embodiment is gradually reduced in the direction from top to bottom; as shown in Figure 4 When the light in the L1 direction inside the adapter light guide strip 3 is emitted to the inner wall of the adapter light guide strip 3, the reduced adapter light guide strip 3 can have multiple light reflections, that is, refractions, such as L2, L3 and L4, and the number of light reflections of the adapter light guide strip 3 in the non-reduced state is greatly increased, so that the number of light reflections or refractions of the adapter light guide strip 3 gradually reduced is increased and the reflection path of the light is reduced, so that the number of light emitted from the adapter light guide strip 3 to the outer connecting inner cover 9 is increased, and the light emitting intensity of the connecting inner cover 9 part is greatly improved to approach the light emitting effect of the upper light guide strip 1 or the lower light guide strip 2.

[0027] Further, as shown in Figure 3As shown, in order to make the light of the light guide strip 3 more uniform, the front end of the light guide strip 3 is provided with an arc-shaped outward convex light exit surface 5 in the embodiment, so that the light emitted from the front end of the light guide strip 3 can be diffused outward when refracted through the light exit surface 5, so that the light emitted from the light exit surface 5 can be relatively dispersed more uniformly, avoiding the light concentrated on the outer lampshade to form a light spot, thereby ensuring that the part of the connecting inner cover 9 is better lit; further, on the basis of the light exit surface 5, the application also provides a plurality of convex portions 6 on the light exit surface 5, which are spaced apart and outwardly convex on the light exit surface 5, a plurality of convex portions 6 are arranged in parallel, the front end of the arc-shaped convex portion 6 is provided with an arc-shaped diffusion surface which is outwardly convex, a plurality of convex portions 6 are provided, which correspondingly increase the light exit area of the light guide strip 3, and also reduce the distance between the light guide strip 3 and the front end of the connecting lampshade 9, so that more light emitted from the light guide strip 3 can be on the connecting inner cover 9, and the arc-shaped diffusion surface on the convex portion 6 further diffuses the light refracted from the arc-shaped diffusion surface outward, thereby ensuring that the connecting inner cover 9 emits light uniformly and the lighting effect of the connecting inner cover 9 is better.

[0028] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned equivalent embodiments without departing from the scope of the present application. Any modification, equivalent change and modification of the above-mentioned embodiments, which does not depart from the technical solution of the present application, is still within the scope of the present application.

Claims

1. A light guide structure for a turn signal, comprising an upper light guide strip (1) and a lower light guide strip (2) arranged at a distance from each other and emitting light respectively by means of light rays emitted by a light source, characterized in that: The upper light guide strip (1) and the lower light guide strip (2) are provided with a connecting light guide strip (3) connected with the upper light guide strip (1) and the lower light guide strip (2) respectively for receiving the light emitted from the upper light guide strip (1) and the lower light guide strip (2).

2. A light guide structure for a turn signal according to claim 1, characterized in that: The upper light guide strip (1) and the lower light guide strip (2) are respectively provided with a light source light inlet end (4) arranged in the same direction, and the connecting light guide strip (3) is arranged on the side close to the light source light inlet end (4).

3. A light guide structure for a turn signal according to claim 1, characterized in that: One end of the connecting light guide strip (3) is connected to the lower end side of the upper light guide strip (1), and the other end of the connecting light guide strip (3) is connected to the upper end side of the lower light guide strip (2).

4. A light guide structure for a turn signal according to claim 1, characterized in that: The connecting light guide strip (3) is gradually inclined to the left or to the right from top to bottom.

5. A light guide structure for a turn signal according to claim 4, characterized in that: The front end of the connecting light guide strip (3) is provided with an arc-shaped outward convex light outlet surface (5).

6. A light guide structure for a turn signal according to claim 5, characterized in that: The light outlet surface (5) is provided with a plurality of convex portions (6) arranged on the light outlet surface (5) and spaced apart from each other and outwardly convex, and the plurality of convex portions (6) are arranged in parallel, and the front end of the arc-shaped convex portion (6) is provided with an arc-shaped outward convex diffusion surface.

7. A light guide structure for a turn signal according to claim 4, characterized in that: The side of the connecting light guide strip (3) close to the light source light inlet end (4) is gradually reduced to the side away from the light source light inlet end (4).

8. A turn signal characterized by: The light guide structure for a turn signal lamp comprises the light guide structure for a turn signal lamp according to any one of claims 1-7.

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