Light guide component and automobile lamp

Abstract

The utility model provides a light guide component and an automobile lamp. The light guide component comprises a light guide plate body which is inserted into a lamp shell and is of a horn-shaped structure, and a light shielding layer and a plurality of light reflecting films which are arranged on the light guide plate body; in the direction from back to front, the area of the section circle of the light guide plate body is gradually increased; the shading layer is used for blocking light in the central area of the shading plate. The reflective film is used for enhancing part of light beams between the outer edge of the light guide plate body and the outer edge of the shading layer. On the basis, the light guide plate body supplements light towards the inner side, the light supplementing effect is enhanced through the reflective film, and the overall light emitting effect of the lamp is guaranteed. The automobile lamp comprises the light guide component, and the beneficial effects of the automobile lamp and the light guide component are the same. According to the light guide component and the automobile lamp, the three-dimensional property and the strength of the light emitting effect are ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile lamps, and specifically relates to a light guide component and an automobile lamp. Background Art

[0002] Automobile lamps refer to various traffic lights installed on cars to ensure safe driving. In terms of function, automobile lamps are mainly divided into lighting lamps and signal lamps. Regardless of whether they are lighting lamps or signal lamps, they need to meet certain lighting effects during driving in order to play a normal functional role.

[0003] Conventional automobile lamps include a lamp housing installed on the vehicle body, an LED light source installed in the lamp housing, and a light guide plate installed in the lamp housing and in front of the LED light source. After the LED light source is started, the light beam is emitted through the light guide plate. Since the light guide plate has the characteristics of high refractive index and non-light absorption, it can effectively improve the visual effect of the light beam.

[0004] The inventors found that with the development of the industry, it is difficult to meet the increasing demands of consumers by only relying on the characteristics of the light guide plate to improve the visual effect of the light beam. The prior art urgently needs a light guide component with better optical effect and better light output effect. Utility Model Content

[0005] The embodiments of the present application provide a light guide component and an automobile lamp, which are intended to replace a traditional light guide plate structure and improve the visual effect of a light beam generated by the automobile lamp.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] A light guide component is provided, comprising:

[0008] The light guide plate body adopts a trumpet-shaped structure, which is inserted into the lamp housing and located in front of the LED light source; and in the direction from the back to the front, the cross-sectional circular area of ​​the light guide plate body gradually increases;

[0009] a light shielding layer, disposed on the light guide plate body, overlapping with the central area of ​​the light guide plate body, and used for blocking light in the central area of ​​the light guide plate body; and

[0010] A plurality of reflective films are disposed on the light guide plate body and are arranged at intervals along the circumference of the light guide plate body;

[0011] Wherein, each of the reflective films is located between the outer edge of the light-shielding layer and the outer edge of the light guide plate body.

[0012] In a possible implementation, each of the reflective films has a strip structure and extends from an outer edge of the light guide plate body toward an outer edge of the light shielding layer.

[0013] In a possible implementation manner, two adjacent reflective films along the circumference of the light guide plate body have different lengths.

[0014] In a possible implementation manner, each of the reflective films is disposed on the rear side of the light guide plate body.

[0015] In a possible implementation, the light shielding layer is located in front of a portion of the reflective film to shield the light beam passing through a portion of the reflective film.

[0016] In a possible implementation, the reflective film is reflective ink printed on the surface of the light guide plate body.

[0017] In a possible implementation, the light-shielding layer is a high-gloss aluminum-plated steel plate coated on the front side of the light guide plate body.

[0018] In a possible implementation, the thickness of the high-brightness aluminum-plated steel plate is any value between 0.0125 mm and 0.0175 mm.

[0019] In a possible implementation manner, an outer edge of the light guide plate body has a texture portion.

[0020] In the embodiment of the present application, the shading layer blocks the light source in the central area of ​​the light guide plate body, and at the same time the light guide plate body converges light inward to supplement the light, so as to ensure the overall lighting effect; on this basis, the reflective film plays a role in enhancing the lighting effect.

[0021] Compared with the prior art, the light-guiding component provided in this embodiment can emit light evenly and can effectively enhance the light-emitting effect, thereby ensuring the normal use of the lamp.

[0022] The technical solution adopted in the present application also provides an automobile lamp, comprising the light-guiding component proposed in any of the aforementioned items.

[0023] The beneficial effects of the automobile lamp provided by this embodiment are the same as the beneficial effects of the aforementioned light guide component, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is one of the three-dimensional structural schematic diagrams of the light guide component provided in the embodiment of the present application;

[0026] Figure 2 The second schematic diagram of the three-dimensional structure of the light guide component provided in the embodiment of the present application;

[0027] Explanation of the accompanying drawings: 1. Light guide plate body; 11. Textured portion; 2. Shading layer; 3. Reflective film. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the 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.

[0031] In addition, 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, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Please also read Figure 1 and Figure 2 Now, the light guide component provided by the present application is described. The light guide component provided by the present application comprises a light guide plate body 1, a light shielding layer 2, and a plurality of reflective films 3.

[0033] In this embodiment, for the convenience of description, various directions in the car light are defined in advance: first, the light source projection direction of the car light is defined as from back to front, and the direction from the outer edge of the lamp to the inner cavity of the lamp is from outside to inside; correspondingly, the direction from the outside area of ​​the vehicle to the car light is from front to back, and the direction from the central axis of the lamp to the inner wall of the lamp is from inside to outside.

[0034] The light guide plate body 1 adopts a trumpet-shaped structure, which is inserted into the lamp housing and located in front of the LED light source to enhance the light guiding effect. Its working principle is the same as that of the traditional light guide plate.

[0035] In the direction from back to front, the cross-sectional circular area of ​​the light guide plate body 1 (i.e. the diameter of the light guide plate body 1 along its own radial direction) gradually increases, and the rear side surface of the light guide plate body 1 (i.e. the side of the light guide plate body 1 facing the LED light source) is concave inward.

[0036] The light shielding layer 2 is disposed on the light guide plate body 1 , overlaps with the central area of ​​the light guide plate body 1 , and is used to block the light in the central area of ​​the light guide plate body 1 .

[0037] A plurality of reflective films 3 are disposed on the light guide plate body 1, and are arranged at intervals along the circumference of the light guide plate body 1, and each reflective film 3 is located between the outer edge of the light shielding layer 2 and the outer edge of the light guide plate body 1; by adopting this technical feature, the reflective film 3 can form a reflective area on the light guide plate body 1, so that the light beam passing through the reflective area is transformed from the original forward propagation to the propagation toward the inner side of the light guide plate body 1; wherein, since the light shielding layer 2 blocks the central area of ​​the light guide plate body 1, the light source passing through the light guide plate body 1 will basically experience obvious reflection.

[0038] It should be noted that after the light shielding layer 2 blocks the light in the central area of ​​the light guide plate body 1, the light formed is not a ring structure either; this is because the presence of the reflective film 3 causes the light beam emitted from the light guide plate body 1 and located outside the light shielding layer 2 to be concentrated to the front side of the light shielding layer 2. In other words, since the light shielding layer 2 and the light guide plate body 1 are overlapped, the "light in the central area of ​​the light guide plate body 1" mentioned here refers to the light emitted from the central area of ​​the light guide plate body 1, rather than the light reflected by the reflective film 3 of the light guide plate body 1 and concentrated in the central area on the front side of the light guide plate body 1.

[0039] In the embodiment of the present application, the shading layer 2 blocks the light in the central area of ​​the light guide plate body 1, and at the same time the light guide plate body 1 converges the light inward to fill in the light to ensure the overall light output effect; on this basis, the reflective film 3 plays a role in enhancing the light output effect.

[0040] Compared with the prior art, the light-guiding component provided in this embodiment can emit light evenly and can effectively enhance the light-emitting effect, thereby ensuring the normal use of the lamp.

[0041] It should be noted that, compared with the technical solution of directly adding a reflective structure to the traditional light guide plate, the light guide component provided in this embodiment can make the light more three-dimensional, thereby enhancing the warning effect of the light source at the visual level; when reflected in automobile lamps, it can ensure that the automobile lamps can provide warnings to pedestrians and other vehicles during actual use, thereby improving the safety of automobile driving and avoiding accidents caused by poor brightness and poor visual effects of automobile lamps.

[0042] It should be noted that, in this embodiment, the arrangement of the reflective film 3 is based on the actual use scenario. Specifically, in some lamps, the reflective film 3 only needs to reflect light and enhance the light-emitting effect; but in other special lamps, the reflective film 3 can also be adjusted according to the actual function of the lamp to match the light-emitting form of the lamp. For example, in some car models, the light-emitting form of the hazard warning flasher is a regular triangle light beam projected in a circular light beam. Here, the reflective film 3 can also be arranged as a regular triangle to match the light source and enhance the visual effect of the light.

[0043] In some embodiments, Figure 1 and Figure 2 As shown, each reflective film 3 adopts a strip structure, and extends from the outer edge of the light guide plate body 1 toward the outer edge of the shading layer 2; that is, this strip structure has two ends, one end coincides with the outer edge of the light guide plate body 1, and the other end is located between the outer edge of the light guide plate body 1 and the outer edge of the shading layer 2, or is located on the outer edge of the shading layer 2.

[0044] By adopting the above technical solution, different from the block-shaped and dot-shaped structures, the strip-shaped structure applied to the trumpet-shaped structure has a neater visual effect and is easier to process (for the painting process).

[0045] In some embodiments, Figure 1 and Figure 2 As shown, the lengths of two adjacent reflective films 3 along the circumference of the light guide plate body 1 are different; in this embodiment, as Figure 2 As shown, every three reflective films 3 form a group, and the multiple groups of reflective films 3 are arranged at intervals along the circumference of the light guide plate body 1; and the three reflective films 3 corresponding to each group of reflective films 3 are sequentially increased or decreased along the circumference of the light guide plate body 1.

[0046] By adopting the above technical solution, each light guide plate body 1 has multiple reflective areas, and the light beam of each reflective area changes along the circumference of the light guide plate body 1. The overall light beam thus formed has a certain visual beauty and can have a more obvious warning effect.

[0047] In some embodiments, Figure 1 and Figure 2As shown, each reflective film 3 is arranged on the rear side of the light guide plate body 1, that is, arranged on the side of the light guide plate body 1 facing the LED light source.

[0048] By adopting the above technical solution, dust and damage of the reflective film 3 caused by damage to the lampshade (the closing element of the lamp housing opening) can be avoided, and aging of the reflective film 3 caused by direct sunlight can be avoided, thereby extending the service life of the component.

[0049] In some embodiments, Figure 1 and Figure 2 As shown, the shading layer 2 is located in front of a portion of the reflective film 3 to block the light beam passing through the portion of the reflective film 3; it should be noted that the "front side" mentioned here does not only refer to the situation that the shading layer 2 and the reflective film 3 are located on the front and back sides of the light guide plate body 1 respectively, but also includes the situation that the shading layer 2 and the reflective film 3 are located on the front side of the light guide plate body 1 and the shading layer 2 covers the surface of the reflective film 3, and the shading layer 2 and the reflective film 3 are located on the back side of the light guide plate body 1 and the reflective film 3 covers the surface of the shading layer 2.

[0050] By adopting the above technical solution, the inner edges of the reflective area formed by multiple reflective films 3 can be made more uniform, ensuring the visual effect of light output; at the same time, from the perspective of the preparation stage, this feature reduces the accuracy of loading the reflective film 3, that is, even if the reflective film 3 is too long, it will not affect the overall light output effect.

[0051] In some embodiments, Figure 1 and Figure 2 As shown, the reflective film 3 is reflective ink printed on the surface of the light guide plate body 1. Specifically, the liquid reflective ink is loaded into a container, and then evenly applied to the light guide plate body 1 by a tool, and then waited to dry.

[0052] By adopting the above technical solution, unlike the prefabricated reflective film 3, the reflective ink has better anti-slip performance and a smaller thickness, thereby extending the service life of the lamp and ensuring the appearance of the lamp.

[0053] In some embodiments, Figure 1 and Figure 2 As shown, the shading layer 2 is a high-gloss aluminum-plated steel plate coated on the front side of the light guide plate body 1, and its actual preparation process can be electroplating; specifically, the shading layer 2 is a thin layer plated on the front side of the light guide plate body 1 using the principle of electrolysis.

[0054] Among them, since the shading layer 2 has a high brightness characteristic, it will not absorb the light beam propagated through the light guide plate body 1 to the front side of the light guide plate body 1, but can play a positive role in the propagation of the light beam, thereby playing a shading role and enhancing the light output effect.

[0055] In addition, when the lamp is not turned on, if an external light source shines on the surface of the shading layer 2, the front side of the high-brightness aluminum-plated steel plate will be reflected and appear high-brightness, thereby alerting people at the light source and avoiding scratches between vehicles driving at night and vehicles using this lamp and parked on the roadside.

[0056] Due to the use of the electroplating process, the connection between the shading layer 2 and the light guide plate body 1 also has the following advantages: preventing metal oxidation (such as rust), improving wear resistance, conductivity, reflectivity, corrosion resistance (copper sulfate, etc.) and enhancing aesthetics; among them, the enhanced reflectivity has a deepening effect on the edge of the shading layer 2 reflecting the external light source, further improving the reliability of the aforementioned scratch avoidance effect.

[0057] It should be supplemented that, since the shading layer 2 and the reflective film 3 are respectively located on the outside and inside of the light guide plate body 1 , their processing will not interfere with each other, thereby ensuring that the processing of the light guide plate body 1 can be carried out reasonably and smoothly.

[0058] In some embodiments, Figure 1 and Figure 2 As shown, the thickness of the high-gloss aluminum-plated steel plate is any value between 0.0125mm and 0.0175mm.

[0059] In some embodiments, Figure 1 and Figure 2 As shown, the outer edge of the light guide plate body 1 has a textured portion 11; in this embodiment, the textured portion 11 extends along the circumference of the light guide plate body 1 and is connected end to end, and its outer side adopts an uneven structure to transform the originally soft light beam into a more brilliant visual effect, enhance the light output of the edge area of ​​the lamp, and make the emitted light beam more three-dimensional and the edge clearly visible. At the same time, the textured portion 11 can also act when the external light source is sufficient and the car lights are turned off, to enhance the appearance of the lamp.

[0060] Based on the same inventive concept, an embodiment of the present application also provides an automotive lamp, comprising a light guide component as proposed in any of the aforementioned items; the light guide component is installed inside a lamp housing of the corresponding lamp, on a side where the LED light source faces the lamp housing opening.

[0061] The lighting fixtures herein refer to any general lighting fixture installed on a car, including car signal lights and car lighting lamps.

[0062] The beneficial effects of the automobile lamp provided in this embodiment are the same as the beneficial effects of the aforementioned light guide component, both of which are to improve the visual effect of the light emitted by the lamp, and will not be repeated here.

[0063] The above content is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A light guide component, characterized in that: include: The light guide plate body (1) adopts a trumpet-shaped structure, is inserted into the lamp housing and is located in front of the LED light source; and in the direction from the back to the front, the cross-sectional circular area of ​​the light guide plate body (1) gradually increases; a light shielding layer (2), arranged on the light guide plate body (1), overlapping with the central area of ​​the light guide plate body (1), and used for blocking light in the central area of ​​the light guide plate body (1); and A plurality of reflective films (3), all of which are arranged on the light guide plate body (1) and are arranged at intervals along the circumference of the light guide plate body (1); Wherein, each of the reflective films (3) is located between the outer edge of the light-shielding layer (2) and the outer edge of the light guide plate body (1).

2. The light guide member according to claim 1, wherein: Each of the reflective films (3) has a strip structure and extends from the outer edge of the light guide plate body (1) towards the outer edge of the light shielding layer (2).

3. The light guide member according to claim 2, wherein: The lengths of two adjacent reflective films (3) along the circumference of the light guide plate body (1) are different.

4. The light guide member according to claim 2, wherein: Each of the reflective films (3) is arranged on the rear side of the light guide plate body (1).

5. The light guide member according to claim 4, wherein: The light shielding layer (2) is located on the front side of a portion of the light reflecting film (3) so as to shield the light beam passing through a portion of the light reflecting film (3).

6. The light guide member according to any one of claims 1 to 5, characterized in that: The reflective film (3) is reflective ink printed on the surface of the light guide plate body (1).

7. The light guide member according to claim 1, wherein: The light shielding layer (2) is a high-brightness aluminum-plated steel plate coated on the front side of the light guide plate body (1).

8. The light guide member according to claim 7, wherein: The thickness of the high-brightness aluminum-plated steel plate is any value between 0.0125mm and 0.0175mm.

9. The light guide member according to claim 1, wherein: The outer edge of the light guide plate body (1) has a texture portion (11).

10. Automobile lamp, characterized in that: The light guide member comprises the light guide member according to any one of claims 1 to 9.

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