Special-shaped vehicle lamp light guide assembly and vehicle
By using mixed light gain structure and light guide teeth in the special-shaped car light guide assembly, modulating light rays and matching the shape of the curved light guide plate, the light difference caused by the angle between the incident light direction of LED particles and the shape of the ambient light is solved, and the light difference is achieved. The light is efficiently mixed and uniform, and the lighting effect of the ambient light is improved.
Patent Information
- Application Number
- CN202420993662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-09
AI Technical Summary
Traditional ambient light design leads to obvious light and dark differences when there are large angles in the direction of incident light of LED particles and the shape trend of ambient light.
Adopt special-shaped light guide components including light guide plate, light mixing gain structure and light guide teeth. Through the design of light mixing gain structure and light guide teeth, light rays are modulated, reflections are increased, and the shape of the curved light guide plate is matched to improve the light rays. Uniformity and reflection efficiency.
It achieves efficient light mixing and uniformity, slows down energy attenuation, reduces light and dark differences, and improves the lighting effect of special-shaped ambient lights.
Smart Images
Figure CN222335168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to a special-shaped vehicle lamp light guide component and a vehicle. Background Art
[0002] At present, many new models are equipped with ambient lights on the exterior, and the shape of ambient lights has also evolved from the original standard long strip to the current various shapes, which brings great challenges to optical design. Traditional long strip ambient lights usually use an optical structure in which one LED particle corresponds to a strip light guide or one row of LED particles corresponds to a narrow light guide plate. However, for ambient lights with special shapes, especially those with a wider light-emitting surface, when there is a large angle between the incident light direction of the LED particles and the shape trend of the ambient light, the design will have obvious differences in brightness. Utility Model Content
[0003] The problem solved by the utility model is that when there is a large angle between the incident light direction of the LED particles and the shape trend of the atmosphere light, the design will have obvious brightness difference.
[0004] In order to solve the above problems, the utility model provides a special-shaped headlight light guide assembly, the special-shaped headlight light guide assembly comprising: an inner mirror; a light guide plate, the light guide plate is arranged opposite to the inner mirror, the light guide plate has a low beam end and a high beam end; the light guide plate comprises a light guide plate body and at least one light mixing gain structure on a side of the light guide plate body away from the inner mirror, the light mixing gain structure connects the low beam end and the high beam end; in the direction from the low beam end to the high beam end, the bending state of the light mixing gain structure matches the shape of the light guide plate; a light source, the light source is arranged at the low beam end of the light guide plate.
[0005] The technical effect achieved after adopting this technical solution is as follows: the light from the light source is incident on the light guide plate from the near light end, and part of the light first contacts the mixing gain structure before hitting the side of the light guide plate, and undergoes a total internal reflection process in advance at the mixing gain structure, which increases the number of reflections of the light, shortens the reflection period of the light, affects the propagation path of part of the light, and realizes modulation of the light. On the one hand, efficient light mixing is achieved, and on the other hand, the energy attenuation process is slowed down, thereby obtaining good uniformity; even if the light guide plate body is a curved special-shaped structure, or there is a large angle, through the mixing gain structure that matches the curved state of the light guide plate, a more uniform reflection effect can be achieved at all parts of the curved light guide plate, thereby improving the lighting effect of the internal mirror.
[0006] Furthermore, the light mixing gain structure extends linearly from the low beam end to the high beam end; a reflection area is formed between adjacent light mixing gain structures, or a reflection area is formed between the light mixing gain structure and the side surface of the light guide plate body.
[0007] The technical effect achieved after adopting this technical solution is as follows: a part of the light passes through the mixing gain structure and continues to pass through the reflection area until total reflection occurs on the side of the light guide plate; a part of the light is reflected by the mixing gain structure and reflected back and forth by two adjacent mixing gain structures in the reflection area, thereby making the light color uniform and bringing more light to the far light end of the light guide plate, thus filling the energy loss at the far light end of the light guide plate.
[0008] Furthermore, the light mixing gain structure is a groove opened on the side of the light guide plate body away from the endoscope, and the groove has two opposite light guide surfaces, and the light guide surfaces face toward or away from the side of the light guide plate body.
[0009] The technical effect achieved after adopting this technical solution is as follows: when the light passes through the mixed light gain structure, part of it is reflected by the light guide surface, increasing the reflection frequency, and the other part is emitted from the groove inside the light guide surface machine, and then from the other light guide surface of the mixed light gain structure, enters the adjacent reflection area, and then is reflected by another mixed light gain structure or by the side of the light guide plate for modulation.
[0010] Furthermore, the light guide plate also includes: a plurality of light guide teeth, which are arranged on a side of the light guide plate body away from the inner mirror, and the plurality of light guide teeth are arranged at intervals between the low beam end and the high beam end for guiding light to the inner mirror.
[0011] The technical effect achieved after adopting this technical solution is: the light guide teeth can control the reflection path of light to modulate the light; on the basis of the mixed light gain structure, the reflection efficiency is further increased, and more light guide teeth can reflect the light, making it more uniform and reducing the difference between light and dark.
[0012] Furthermore, the light-guiding tooth includes: a light-incoming surface and a light-reflecting surface, the light-incoming surface faces the low-beam end, the light-reflecting surface faces the high-beam end, and the light-reflecting surface is inclined relative to the light-incoming surface.
[0013] The technical effect achieved after adopting this technical solution is as follows: light is incident on the light-incoming surface of the light-guiding tooth from the side of the low beam end, and is reflected to the inner mirror through the relatively inclined reflective surface, thereby improving the reflection efficiency.
[0014] Furthermore, the special-shaped vehicle lamp light guide assembly also includes: a mounting bracket, a mounting groove is provided in the mounting bracket, the light guide plate is arranged in the mounting groove, and the light source is located at one end of the mounting groove.
[0015] The technical effect achieved after adopting this technical solution is: the mounting bracket is used to position and install the light guide plate and the light source to prevent the light guide plate and the light source from shaking relative to the mounting groove, and at the same time, the light source has a more stable lighting effect on the light guide plate.
[0016] Furthermore, the special-shaped vehicle lamp light guide assembly also includes: a decorative plate, the decorative plate cover is arranged on the mounting bracket, the decorative plate is provided with a light-transmitting opening at a position corresponding to the mounting groove, and the interior mirror is arranged at the light-transmitting opening.
[0017] The technical effect achieved after adopting this technical solution is: the decorative plate is used to fix the inner mirror, block the light around the inner mirror, and output the required light from the light-transmitting opening, so as to achieve the target lighting effect and decorative effect on the outside of the decorative plate.
[0018] Furthermore, the interior mirror is provided with an extension portion, the extension portion is matched with the inner side of the decorative plate, and the extension portion is provided on at least one side of the circumference of the installation groove.
[0019] The technical effect achieved after adopting this technical solution is: the inner wall of the extension part and the decorative plate are limited and fixed to prevent any side of the interior mirror from sliding out of the light-transmitting opening.
[0020] Furthermore, the light guide plate is provided with an arc pattern at the low beam end.
[0021] The technical effect achieved after adopting this technical solution is as follows: the light emitted by the light source enters the light guide plate through the near light end, and through the refraction of the arc pattern, the light propagates mainly along the optical axis direction of the center of the light guide plate, and is slightly scattered to both sides through the dispersion effect of the arc pattern, thereby dispersing the light and improving uniformity.
[0022] The utility model provides a vehicle, which comprises a special-shaped vehicle lamp light guide assembly provided by any one of the above technical solutions.
[0023] Technical effect achieved after adopting this technical solution: the vehicle can achieve one or more of the above-mentioned technical effects.
[0024] In summary, the above-mentioned technical solutions of the present application may have one or more of the following advantages or beneficial effects: i) The light of the light source is incident on the light guide plate from the near light end, and part of the light first contacts the mixing gain structure before hitting the side of the light guide plate, and undergoes the total internal reflection process in advance at the mixing gain structure, which increases the number of reflections of the light, shortens the reflection period of the light, affects the propagation path of part of the light, and realizes the modulation of the light. On the one hand, efficient light mixing is achieved, and on the other hand, the energy attenuation process is slowed down, thereby obtaining good uniformity; ii) Even if the light guide plate body is a curved special-shaped structure, the mixing gain structure that matches the curved state of the light guide plate can achieve a more uniform reflection effect on all parts of the curved light guide plate, thereby improving the lighting effect of the internal glasses; iii) The light guide teeth can control the reflection path of the light to modulate the light. On the basis of the mixing gain structure, the reflection efficiency is further increased, and more light guide teeth can reflect the light, thereby making it more uniform and reducing the difference in brightness. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A structural schematic diagram of a special-shaped vehicle lamp light guide assembly provided by the utility model;
[0026] Figure 2 for Figure 1 Exploded view of the light guide assembly of a medium-shaped headlight;
[0027] Figure 3 for Figure 2 A schematic diagram of the structure of the middle light guide plate;
[0028] Figure 4 for Figure 3 A partial enlarged view of the middle I area;
[0029] Figure 5 for Figure 1 A schematic diagram of the structure of the light guide assembly of a special-shaped headlight from another perspective;
[0030] Figure 6 for Figure 5 Sectional view in the AA direction;
[0031] Figure 7 for Figure 5 Cross-sectional view along the BB direction.
[0032] Description of reference numerals:
[0033] 100-special-shaped headlight light guide assembly; 110-interior mirror; 111-extension portion; 120-light guide plate; 121-low beam end; 122-high beam end; 123-light mixing gain structure; 124-arc pattern; 130-light guide teeth; 140-mounting bracket; 150-decorative plate; 160-light source. DETAILED DESCRIPTION
[0034] The utility model aims to provide a special-shaped vehicle lamp light guide component and a vehicle, which are used to achieve the effect of uniform lighting of the special-shaped vehicle lamp.
[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0036] See also Figure 1-Figure 7The utility model provides a special-shaped headlight light guide assembly 100, which includes: an inner mirror 110; a light guide plate 120, which is arranged opposite to the inner mirror 110, and has a low beam end 121 and a high beam end 122; the light guide plate 120 includes a light guide plate body and at least one light mixing gain structure 123 on a side of the light guide plate body away from the inner mirror 110, and the light mixing gain structure 123 connects the low beam end 121 and the high beam end 122; in the direction from the low beam end 121 to the high beam end 122, the bending state of the light mixing gain structure 123 matches the shape of the light guide plate 120; a light source 160, which is arranged at the low beam end 121 of the light guide plate 120.
[0037] In the present embodiment, the light from the light source 160 enters the light guide plate 120 from the near light end 121. Before part of the light hits the side of the light guide plate 120, it first contacts the light mixing gain structure 123 and undergoes a total internal reflection process at the light mixing gain structure 123 in advance, thereby increasing the number of reflections of the light, shortening the reflection period of the light, affecting the propagation path of part of the light, and modulating the light. On the one hand, efficient light mixing is achieved, and on the other hand, the energy attenuation process is slowed down, thereby obtaining good uniformity. Even if the light guide plate body is a curved special-shaped structure or has a large angle, the light mixing gain structure 123 that matches the curved state of the light guide plate 120 can provide a more uniform reflection effect at all parts of the curved light guide plate 120, thereby improving the lighting effect of the internal mirror 110.
[0038] In a specific embodiment, the light mixing gain structure 123 extends linearly from the near light end 121 to the far light end 122 ; a reflective area is formed between adjacent light mixing gain structures 123 , or between the light mixing gain structure 123 and the side surface of the light guide plate body.
[0039] It should be noted that, after passing through the light mixing gain structure 123, a part of the light continues to pass through the reflection area until it is totally reflected from the side of the light guide plate 120, and a part of the light is reflected by the light mixing gain structure 123 and reflected back and forth by two adjacent light mixing gain structures 123 in the reflection area, thereby making the light color uniform and bringing more light to the far light end 122 of the light guide plate 120, thereby making up for the energy loss at the far light end 122 of the light guide plate 120.
[0040] Preferably, a plurality of spaced light mixing gain structures 123 are spaced between the two side surfaces of the light guide plate 120, for example, arranged in parallel along the optical axis direction of the center of the light guide plate 120, so as to further improve the reflection efficiency and the uniformity of the electric quantity. For example, the number of light mixing gain structures 123 is, for example, 2, 3, 4, etc. The number of light mixing gain structures 123 can be adaptively set according to the width of the light guide plate 120, which is not limited here.
[0041] In a specific embodiment, the light mixing gain structure 123 is a groove opened on the side of the light guide plate body away from the endoscope 110 , and the groove has two opposite light guide surfaces facing or away from the side of the light guide plate body.
[0042] It should be noted that when the light passes through the mixing gain structure 123, part of it is reflected by the light guiding surface, increasing the reflection frequency, and the other part is emitted from the groove inside the light guiding surface and then from the other light guiding surface of the mixing gain structure 123, enters the adjacent reflection area, and is then reflected by another mixing gain structure 123 or by the side of the light guide plate 120 for modulation.
[0043] For example, the groove is a V-shaped structure, which is not limited here.
[0044] In a specific embodiment, the light guide plate 120 further includes: a plurality of light guide teeth 130 , which are disposed on a side of the light guide plate body away from the inner lens 110 , and the plurality of light guide teeth 130 are spaced apart between the low beam end 121 and the high beam end 122 for guiding light to the inner lens 110 .
[0045] It should be noted that the light guide teeth 130 can control the reflection path of light to modulate the light; on the basis of the light mixing gain structure 123, the reflection efficiency is further increased, and more light guide teeth 130 can reflect the light, making it more uniform and reducing the difference in brightness.
[0046] Preferably, the arrangement direction of the light guide teeth 130 is perpendicular to the arrangement direction of the light mixing gain structure 123 , so as to improve the uniformity of reflection of the light guide teeth 130 .
[0047] In a specific embodiment, the light guiding tooth 130 includes: a light entering surface and a light reflecting surface, the light entering surface faces the low light end 121 , the light reflecting surface faces the high light end 122 , and the light reflecting surface is inclined relative to the light entering surface.
[0048] It should be noted that the light is incident on the light-incoming surface of the light-guiding tooth 130 from the side of the low beam end 121 , and is reflected to the inner mirror 110 through the relatively inclined reflecting surface, thereby improving the reflection efficiency.
[0049] In a specific embodiment, the special-shaped vehicle lamp light guide assembly 100 further includes: a mounting bracket 140, a mounting groove is provided in the mounting bracket 140, the light guide plate 120 is provided in the mounting groove, and the light source 160 is located at one end of the mounting groove.
[0050] It should be noted that the mounting bracket 140 is used to position and install the light guide plate 120 and the light source 160 to prevent the light guide plate 120 and the light source 160 from shaking relative to the mounting groove, and at the same time, make the light source 160 have a more stable lighting effect on the light guide plate 120.
[0051] Preferably, the light source 160 is, for example, a lamp bead connected to a PCB board, and the PCB board is fixed by a mounting bracket 140 .
[0052] In a specific embodiment, the special-shaped vehicle lamp light guide assembly 100 further includes: a decorative plate 150, the decorative plate 150 is covered on the mounting bracket 140, a light-transmitting opening is provided at a position of the decorative plate 150 corresponding to the mounting groove, and the interior mirror 110 is provided at the light-transmitting opening.
[0053] It should be noted that the decorative plate 150 is used to fix the interior mirror 110 , shield the light around the interior mirror 110 , and output the required light from the light-transmitting opening to achieve the target lighting effect and decorative effect outside the decorative plate 150 .
[0054] In a specific embodiment, the interior mirror 110 is provided with an extension portion 111 , the extension portion 111 is matched with the inner side of the decorative plate 150 , and the extension portion 111 is provided on at least one side of the circumference of the installation groove.
[0055] It should be noted that the extending portion 111 and the inner wall of the decorative plate 150 are fixed in position to prevent any side of the interior mirror 110 from sliding out of the light-transmitting opening.
[0056] Preferably, the extension portion 111 is disposed around the interior mirror 110 .
[0057] In a specific embodiment, the light guide plate 120 is provided with an arc-shaped pattern 124 at the low beam end 121 .
[0058] It should be noted that the light emitted by the light source 160 enters the light guide plate 120 through the near light end 121, and through the refraction of the arc pattern 124, the light propagates mainly along the optical axis direction of the center of the light guide plate 120, and is slightly scattered to both sides by the dispersion effect of the arc pattern 124, thereby dispersing the light and improving uniformity.
[0059] The utility model provides a vehicle, the vehicle comprising a special-shaped vehicle lamp light guide assembly 100 provided by any of the above technical solutions. It should be noted that the vehicle can achieve one or more of the above technical effects.
[0060] Preferably, the special-shaped vehicle lamp light guide assembly 100 is used as a decorative lamp for a vehicle.
[0061] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.
Claims
1. A special-shaped vehicle lamp light guide assembly, characterized in that: The special-shaped vehicle lamp light guide assembly comprises: Endoscopy (110); A light guide plate (120), the light guide plate (120) being arranged opposite to the interior mirror (110), the light guide plate (120) having a near light end (121) and a far light end (122); the light guide plate (120) comprising a light guide plate body and at least one light mixing gain structure (123) on a side of the light guide plate body away from the interior mirror (110), the light mixing gain structure (123) connecting the near light end (121) and the far light end (122); in the direction from the near light end (121) to the far light end (122), the bending state of the light mixing gain structure (123) matches the shape of the light guide plate (120); A light source (160), wherein the light source (160) is disposed at the near light end (121) of the light guide plate (120).
2. The special-shaped vehicle lamp light guide assembly according to claim 1, characterized in that: The light mixing gain structure (123) extends linearly from the near light end (121) to the far light end (122); a reflection area is formed between adjacent light mixing gain structures (123), or a reflection area is formed between the light mixing gain structure (123) and the side surface of the light guide plate body.
3. The special-shaped vehicle lamp light guide assembly according to claim 1, characterized in that: The light mixing gain structure (123) is a groove opened on the side of the light guide plate body away from the endoscope (110), and the groove has two opposite light guide surfaces, and the light guide surfaces face toward or away from the side of the light guide plate body.
4. The special-shaped vehicle lamp light guide assembly according to claim 1, characterized in that: The light guide plate (120) further comprises: a plurality of light guide teeth (130), wherein the light guide teeth (130) are arranged on a side of the light guide plate body away from the inner mirror (110), and the plurality of light guide teeth (130) are arranged at intervals between the low beam end (121) and the high beam end (122) for guiding light to the inner mirror (110).
5. The special-shaped vehicle lamp light guide assembly according to claim 4, characterized in that: The light-guiding tooth (130) comprises a light-incoming surface and a light-reflecting surface, the light-incoming surface faces the low-light end (121), the light-reflecting surface faces the high-light end (122), and the light-reflecting surface is inclined relative to the light-incoming surface.
6. The special-shaped vehicle lamp light guide assembly according to claim 1, characterized in that: The special-shaped vehicle lamp light guide assembly further comprises: a mounting bracket (140), a mounting groove is provided in the mounting bracket (140), the light guide plate (120) is arranged in the mounting groove, and the light source (160) is located at one end of the mounting groove.
7. The special-shaped vehicle lamp light guide assembly according to claim 6, characterized in that: The special-shaped vehicle lamp light guide assembly further comprises: a decorative plate (150), the decorative plate (150) is covered on the mounting bracket (140), a light-transmitting opening is provided on the decorative plate (150) at a position corresponding to the mounting groove, and the interior mirror (110) is provided on the light-transmitting opening.
8. The special-shaped vehicle lamp light guide assembly according to claim 7, characterized in that: The interior mirror (110) is provided with an extension portion (111), the extension portion (111) is matched with the inner side of the decorative plate (150), and the extension portion (111) is provided on at least one side of the circumference of the installation groove.
9. The special-shaped vehicle lamp light guide assembly according to claim 1, characterized in that: The light guide plate (120) is provided with an arc-shaped pattern (124) at the low light end (121).
10. A vehicle, characterized in that: The vehicle comprises the special-shaped vehicle lamp light guide assembly as described in any one of claims 1-9.