Single-layer thick-wall part, vehicle lamp and vehicle
By setting optical patterns on the first and second surfaces of the optical path of a single-layer thick-walled component, the problem of uneven light output from the headlights is solved, achieving uniform light diffusion, reducing graininess, and improving the lighting effect.
Patent Information
- Application Number
- CN202520315129.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing single-layer thick-walled components produce uneven light output in vehicle lights, resulting in a grainy appearance and making it difficult to meet the requirements for uniformity.
A first and second opposing surface are set in the optical path of a single-layer thick-walled component, and optical patterns are set on both surfaces. The light is diffused twice to improve uniformity.
Through the design of optical patterns, light is diffused twice during transmission, which significantly improves the uniformity of light output and reduces graininess.
Smart Images
Figure CN223579766U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of lamps, in particular to a single-layer thick-wall piece, a vehicle lamp and a vehicle. BACKGROUND
[0002] The single-layer thick-wall piece on the vehicle lamp refers to a light-transmitting element with a single-layer structure, large wall thickness and used in the interior of the vehicle lamp, which can uniformly distribute light and provide clear, bright and soft illumination effect.
[0003] The single-layer thick-wall piece as the optical element in the interior of the vehicle lamp can guide light to propagate along a predetermined path and ensure that the light can be uniformly distributed in the interior of the vehicle lamp, thereby providing clear illumination effect. The light emitted from the current single-layer thick-wall piece structure has certain granularity and it is difficult to meet the uniformity requirement.
[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT
[0005] The application aims to provide a single-layer thick-wall piece, a vehicle lamp and a vehicle to improve the uniformity of light emission and reduce granularity.
[0006] In a first aspect, the application provides a single-layer thick-wall piece, comprising:
[0007] A first surface and a second surface are arranged on the light path from the light-in surface to the light-out surface of the single-layer thick-wall piece body, and the first surface and the second surface are opposite to each other.
[0008] Optical patterns are arranged on the first surface and the second surface.
[0009] Light is conducted from the light-in surface to the light-out surface via the first surface and the second surface.
[0010] Optionally, the first surface and the second surface are connected to the bottom surface, and the first surface and the second surface serve as side surfaces and together with the bottom surface form a groove on the light path.
[0011] Optionally, the groove gradually narrows in the direction from the top to the bottom.
[0012] Optionally, the first distance between the bottom surface and the lower boundary of the light-out surface is greater than or equal to 3 mm.
[0013] Optionally, optical patterns are arranged on the light-out surface.
[0014] Optionally, the second distance between the bottom surface and the third lower surface of the single-layer thick-wall piece body is greater than or equal to 3 mm.
[0015] The third lower surface of the single-layer thick-wall piece body is parallel to the bottom surface and located in the depth direction of the groove.
[0016] Optionally, the single-layer thick-wall body further comprises: a first upper surface, a second upper surface, a third upper surface, a first lower surface, a second lower surface, and a fourth lower surface.
[0017] The first upper surface and the first lower surface form a first light path, the second upper surface and the second lower surface form a second light path, the space in the groove is a third light path, and the third upper surface and the fourth lower surface form a fourth light path.
[0018] The light rays enter from the light-in surface and are conducted along the first light path, the second light path, the third light path, and the fourth light path in sequence to the light-out surface.
[0019] Optionally, the first light path is perpendicular to the second light path, and the second light path is parallel to the fourth light path.
[0020] In a second aspect, the application provides a vehicle lamp, comprising: a circuit board and any single-layer thick-wall part provided by the application.
[0021] The light source of the circuit board is directed towards the light-in surface, and the light source emits light rays into the light-in surface.
[0022] In a third aspect, the application provides a vehicle using the vehicle lamp provided by the application.
[0023] Compared with the prior art, the application has the following beneficial effects:
[0024] The application sets opposite first and second surfaces on the light path from the light-in surface to the light-out surface, and sets optical patterns on the first and second surfaces, so that the light rays can be twice diffused by the first optical pattern during the conduction process, making the emitted light rays more uniform. The diffused light rays are diffused again by the second optical pattern, making the light-out more uniform. The single-layer thick-wall part provided by the application can effectively weaken the particle feeling after lighting, and the uniformity effect is obviously improved compared with the traditional thick-wall scheme. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0026] Figure 1 is a structural schematic diagram of a single-layer thick-wall part provided by an embodiment of the application;
[0027] Figure 2 is a schematic diagram of the light path in the single-layer thick-wall body provided by an embodiment of the application;
[0028] Figure 3 is a structural schematic diagram of a vehicle lamp provided by an embodiment of the present application;
[0029] Wherein, 1-single layer thick wall part body, 2-light inlet surface, 3-light outlet surface, 4-first surface, 5-second surface, 6-light source, 7-optical pattern, 8-groove, 9-bottom surface, 10-first upper surface, 11-second upper surface, 12-third upper surface, 13-first lower surface, 14-second lower surface, 15-third lower surface, 16-fourth lower surface, 17-first light path, 18-second light path, 19-third light path, 20-fourth light path, 21-circuit board, 22-single layer thick wall part, 23-vehicle lamp. DETAILED DESCRIPTION
[0030] Exemplary embodiments of the present application are described herein with reference to the accompanying drawings, which are included to provide a thorough understanding of embodiments of the present application by a person of ordinary skill in the art, and should not be construed as a limitation on the scope of the present application. It will be understood that those who ordinarily possess the ordinary skill in the art can make various changes and modifications to the embodiments described herein without departing from the scope and spirit of the present application. Also, in the following description, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
[0031] An embodiment of the present application provides a single layer thick wall part, which refers to a part with a large thickness in a vehicle lamp housing, generally more than 2mm, made of plastic or glass and the like. These materials have good heat resistance, light resistance, hardness and the like, and can meet the use requirements of the vehicle lamp in harsh environments. The single layer thick wall part has certain strength and rigidity, and can provide necessary structural support for the vehicle lamp to ensure that the vehicle lamp remains stable during use. In addition to the basic protection and support function, the single layer thick wall part also has a light guiding function. The single layer thick wall part is usually made of transparent or translucent materials, which have good optical performance. When light is emitted from the light source and irradiates on the single layer thick wall part, the light will be refracted and reflected inside the thick wall part. By reasonably designing the shape, curved surface and internal structure of the single layer thick wall part, the light can be effectively controlled to propagate in a predetermined direction, thereby achieving the light guiding effect.
[0032] Referring to Figure 1 An embodiment of the present application provides a single layer thick wall part 22, which includes a single layer thick wall part body 1, a light inlet surface 2, a light outlet surface 3, a first surface 4 and a second surface 5 formed on the single layer thick wall part body 1.
[0033] The shape and structure of the single-layer thick-walled part body 1 can be set according to the requirements of the vehicle lamp 23, and the embodiment is not limited. The single-layer thick-walled part body 1 includes a light-incident surface 2 close to the light source 6 and a light-emitting surface 3 that emits light to the environment. The light emitted by the light source 6 enters from the light-incident surface 2, conducts in the light path provided by the single-layer thick-walled part body 1, and finally emits from the light-emitting surface 3 to the environment outside the vehicle lamp 23.
[0034] To solve the technical problem of uneven light emission of the single-layer thick-walled part 22 in the prior art, the embodiment improves the structure of the single-layer thick-walled part 22 and sets the first surface 4 and the second surface 5 on the light path from the light-incident surface 2 to the light-emitting surface 3. The first surface 4 and the second surface 5 are oppositely arranged, and the embodiment does not limit the included angle between the first surface 4 and the second surface 5, which can be selected as any value between 0 and 60. That is, the first surface 4 and the second surface 5 can be parallel or respectively present a certain inclination.
[0035] The first surface 4 and the second surface 5 are both provided with optical patterns 7. The optical patterns 7 are convex patterns that can change the exit angle of reflected light and improve the uniformity of light. Optionally, the optical patterns 7 have the following shapes:
[0036] 1) Wave shape:
[0037] The wave-shaped optical pattern 7 presents in the form of a continuous curve, similar to the waves on the water surface. This shape of the pattern helps to guide and control the transmission path of light, improving the focusing effect and reflection efficiency of light.
[0038] 2) Parallel line shape:
[0039] The optical pattern 7 of the parallel line shape is composed of a series of parallel straight lines or curves, which are usually perpendicular to the surface of the single-layer thick-walled part 22 or arranged along a certain direction. The pattern of parallel lines can enhance the diffusion effect of light, making the light more uniformly distributed inside the vehicle lamp 23.
[0040] 3) Prism shape arranged in steps:
[0041] In some single-layer thick-walled parts 22, the optical pattern 7 can present as a plurality of unit light-incident prisms arranged in steps. Each prism has 2 light-incident surfaces 2 distributed at an included angle, and a wave-shaped pattern can be formed on one of the light-incident surfaces 2. This shape of the pattern can improve the diffusion effect when light enters, effectively reducing the vertical stripe phenomenon when observed at a large angle.
[0042] 4) Geometric shape:
[0043] The optical pattern 7 can also present various geometric shapes, such as circles, ellipses, squares, etc. These geometric patterns can be achieved through precise design and manufacturing to meet specific optical requirements.
[0044] The specific shape of the optical pattern 7 is not limited in this embodiment, and the shape of the optical pattern 7 on the first surface 4 and the second surface 5 can be the same or different, which can be adjusted according to the actual light emission uniformity.
[0045] Since the first surface 4 and the second surface 5 are arranged on the single-layer thick-walled part 22, after the light enters from the light-incident surface 2, it is first conducted to the first surface 4, diffused by the optical pattern 7 on the first surface 4, and then enters the second surface 5, and is diffused again by the optical pattern 7 on the second surface 5, and finally conducted to the light-emitting surface 3. Optionally, the optical pattern 7 can also be arranged on the light-emitting surface 3, and the shape of the optical pattern 7 is not limited, so that the light can be diffused again when emitting, further improving the uniformity of the emitted light.
[0046] The application sets the opposite first surface 4 and second surface 5 on the light path from the light-incident surface 2 to the light-emitting surface 3, and sets the optical pattern 7 on the first surface 4 and the second surface 5, so that the light can be diffused twice by the first optical pattern 7 during the conduction process, making the emitted light more uniform; the diffused light is diffused again by the second optical pattern 7, making the light emission more uniform. The single-layer thick-walled part 22 provided by the application can effectively weaken the graininess after lighting, and the uniformity effect is obviously improved compared with the traditional thick-walled scheme.
[0047] Continuing to refer to Figure 1 , the first surface 4 and the second surface 5 are connected to the bottom surface 9, and the first surface 4 and the second surface 5 serve as side surfaces and together with the bottom surface 9 form a groove 8 on the light path. The groove 8 provides a space for the light to be conducted from the first surface 4 to the second surface 5. The width of the groove 8 is not limited, for example, it can be in the range of 4mm to 8mm; the depth of the groove 8 is not limited, for example, it can be in the range of 8mm to 12mm. Optionally, it is found through the light emission uniformity test that setting the groove 8 at a position 30mm to 40mm away from the optical pattern on the light-emitting surface can achieve good light emission uniformity effect.
[0048] Optionally, the groove 8 gradually narrows from the top to the bottom surface 9 in the direction of the side surface (i.e., the first surface 4 and the second surface 5), that is, it presents a visual effect of being wide at the top and narrow at the bottom.
[0049] In the embodiment, "up" refers to the side away from the light inlet surface 2 / light source 6, and "down" refers to the side close to the light inlet surface 2 / light source 6. The light outlet surface 3 has an upper boundary and a lower boundary, and the lower boundary is the side close to the light inlet surface 2. The distance between the bottom surface 9 of the groove 8 and the lower boundary of the light outlet surface 3 is referred to as the first distance A, and the first distance A is greater than or equal to 3 mm. The bottom surface 9 is closer to the light inlet surface 2 than the lower boundary of the light outlet surface 3, that is, the bottom surface 9 is deeper than the lower boundary of the light outlet surface 3, so that it can be ensured that all the light emitted by the light outlet surface 3 is sufficiently diffused by the optical patterns 7 on the first surface 4 and the second surface 5, and the light emission uniformity is ensured.
[0050] Optionally, referring to Figure 2 , the single-layer thick-walled member body 1 has a third lower surface 15, which is the side close to the light inlet surface 2 / light source 6. The distance between the bottom surface 9 of the groove 8 and the third lower surface 15 of the single-layer thick-walled member 22 is referred to as the second distance B, and the second distance B is greater than or equal to 3 mm. In this embodiment, the single-layer thick-walled member body 1 has a plurality of lower surfaces with different heights, and the third lower surface 15 refers to a lower surface that is parallel to the bottom surface 9 of the groove 8 and is located in the depth direction of the groove 8, as shown in Figure 1 . In this embodiment, the second distance B is set to be greater than or equal to 3 mm, so that the single-layer thick-walled member body 1 has sufficient support capability, and the feasibility of the manufacturing mold of the single-layer thick-walled member body 1 can be ensured. The second distance B is set to be greater than or equal to 3 mm to ensure the flowability during the injection molding of the positive mold.
[0051] Optionally, referring to Figure 2 , the single-layer thick-walled member body 1 includes a first upper surface 10, a second upper surface 11, a third upper surface 12, a first lower surface 13, a second lower surface 14, a third lower surface 15, and a fourth lower surface 16.
[0052] The first upper surface 10 and the second upper surface 11 are connected and form a certain angle (which can be referred to as a light path angle); the second upper surface 11 is blocked by the groove 8 in the middle of the second upper surface 11 and the third upper surface 12, and the second upper surface 11 is flush with the third upper surface 12; the third upper surface 12 is connected with the upper boundary of the light outlet surface 3. The first lower surface 13 and the second lower surface 14 are connected and form the aforementioned light path angle, the second lower surface 14 and the third lower surface 15 are connected and form a certain angle (i.e., the angle between the first surface 4 of the groove 8 and the bottom surface 9), and the third lower surface 15 and the fourth lower surface 16 are connected and form a certain angle (i.e., the angle between the second surface 5 of the groove 8 and the bottom surface 9). The fourth lower surface 16 is connected with the lower boundary of the light outlet surface 3.
[0053] Figure 2 is a schematic diagram of the light path of the light conducted in the single-layer thick-walled member 22 provided in the embodiment. The direction indicated by the arrow is the direction of light conduction. Referring to Figure 3The first optical path 17 is formed between the first upper surface 10 and the first lower surface 13, the second optical path 18 is formed between the second upper surface 11 and the second lower surface 14, the space in the groove 8 is the third optical path 19, and the fourth optical path 20 is formed between the third upper surface 12 and the fourth lower surface 16.
[0054] Optionally, the first optical path 17 is perpendicular to the second optical path 18, and the second optical path 18 is parallel to the fourth optical path 20. The light enters the light inlet surface 2 and is conducted along the first optical path 17, the second optical path 18, the third optical path 19 and the fourth optical path 20 in turn to the light outlet surface 3.
[0055] Referring to Figure 2 , the light enters the first optical path 17 of the single-layer thick-walled part 22 vertically upward from the light inlet surface 2, and then is conducted to the second optical path 18 and the first surface 4 horizontally due to the change of the shape of the single-layer thick-walled part 22 and the existence of the optical path angle. After being diffused by the optical pattern 7 on the first surface 4, the light is irradiated to the second surface 5 through the third optical path 19 in the groove 8. After being diffused by the optical pattern 7 on the second surface 5, the light is conducted to the fourth optical path 20 and finally to the light outlet surface 3.
[0056] The application further provides a vehicle lamp 23, referring to Figure 3 , comprising the circuit board 21 and the single-layer thick-walled part 22 provided by any one of the preceding embodiments.
[0057] The circuit board 21 can be a printed circuit board (PCB) 21, and the PCB 21 has a controller and a light-emitting element, such as a halogen bulb or a light-emitting diode, etc. The controller can drive the light-emitting element to emit light, that is, the light-emitting element serves as the light source 6 of the single-layer thick-walled part 22. The light source 6 is directed towards the light inlet surface 2, and the light emitted by the light source 6 can directly enter the light inlet surface 2.
[0058] Optionally, the vehicle lamp 23 can further comprise a lamp shell, a reflector and a lens, etc. The lamp shell serves to protect the internal components and is designed to match the overall style of the vehicle. The lamp shell is usually made of transparent or translucent material to ensure the transmission of light. The reflector is responsible for concentrating and reflecting the light emitted by the light source 6, improving the lighting efficiency. The lens can further focus the light to form a specific light shape, such as high beam and low beam.
[0059] The embodiment of the present application also provides a vehicle, which applies the vehicle lamp 23 provided by the foregoing embodiment. The vehicle lamp 23 can be used as an external vehicle lamp 23 or an internal vehicle lamp 23. The external vehicle lamp 23 includes but is not limited to a headlamp, a fog lamp, a back lamp 23, a turn signal lamp and a clearance lamp. The internal vehicle lamp 23 includes but is not limited to a roof lamp, a reading lamp, a trunk lamp and an instrument illumination lamp. According to the installation space of the vehicle lamp 23, a single-layer thick-wall piece body 1 of different shapes and sizes can be designed, and a groove 8 is formed on the light path of the single-layer thick-wall piece 22, and the optical pattern 7 is arranged on the two sides of the groove 8, so as to improve the uniformity of light emission.
[0060] Optionally, the vehicle provided by the embodiment of the present application also includes a vehicle body, a chassis, wheels and other necessary structures of the vehicle, which will not be described herein.
[0061] The vehicle lamp 23 provided by the embodiment of the present application is subjected to light emission uniformity test. The main purpose of the light emission uniformity test is to evaluate whether the light intensity distribution of the vehicle lamp 23 in a specific test area is uniform. By measuring the maximum illumination intensity MAX and the minimum illumination intensity MIN, whether the vehicle lamp 23 meets the design requirements and use standards is judged. If the MAX and the MIN are quite different, it indicates that the illumination effect of the vehicle lamp 23 is not uniform enough, and further optimization design is needed. If the MAX and the MIN are quite small, it indicates that the illumination effect is uniform. For example, MAX / MIN≤1.2 is regarded as uniformity qualified.
[0062] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in the present application can be achieved, which is not limited herein.
[0063] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A single-layer thick-walled component, characterized in that, include: In the light path from the light-incident surface to the light-outceasing surface of the single-layer thick-walled component body, a first surface and a second surface are provided, with the first surface and the second surface facing each other; Optical patterns are provided on the first and second surfaces; Light rays travel from the incident surface through the first and second surfaces to the exit surface.
2. The single-layer thick-walled component according to claim 1, characterized in that, Both the first and second surfaces are connected to the bottom surface. The first and second surfaces, as side surfaces, together with the bottom surface, form the groove in the optical path.
3. The single-layer thick-walled component according to claim 2, characterized in that, The groove gradually narrows from the top to the bottom surface.
4. The single-layer thick-walled component according to claim 2, characterized in that, The first distance between the bottom surface and the lower boundary of the light-emitting surface is greater than or equal to 3mm.
5. The single-layer thick-walled component according to claim 2, characterized in that, The second distance between the bottom surface and the third lower surface of the single-layer thick-walled component body is greater than or equal to 3 mm; The third lower surface of the single-layer thick-walled component body is parallel to the bottom surface and located in the depth direction of the groove.
6. The single-layer thick-walled component according to claim 5, characterized in that, The single-layer thick-walled component body further includes: a first upper surface, a second upper surface, a third upper surface, a first lower surface, a second lower surface, and a fourth lower surface; The first upper surface and the first lower surface form a first optical path, the second upper surface and the second lower surface form a second optical path, the space inside the groove is a third optical path, and the third upper surface and the fourth lower surface form a fourth optical path. Light enters from the light-incident surface and is sequentially transmitted along the first, second, third, and fourth light paths to the light-out surface.
7. The single-layer thick-walled component according to claim 6, characterized in that, The first optical path is perpendicular to the second optical path, and the second optical path is parallel to the fourth optical path.
8. The single-layer thick-walled member according to any one of claims 1-7, characterized in that, The light-emitting surface is provided with optical patterns.
9. A vehicle light, characterized in that, include: Circuit board and single-layer thick-walled component as described in any one of claims 1-8; The light source of the circuit board faces the light-incident surface, and the light emitted by the light source enters the light-incident surface.
10. A vehicle, characterized in that, The vehicle light described in claim 9 is used.