Non-direct-injection thick-wall light guide lamp and vehicle
By setting up multiple PCB boards in thick-walled light guide lights and optimizing the collimation structure, the problems of large size and large space occupancy of traditional headlights are solved, and a smaller headlight volume and better styling adaptability are achieved.
Patent Information
- Application Number
- CN202421132061.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Due to the length limitation of the traditional non-direct thick-wall light guide light, the PCB board needs to be split into multiple pieces and spliced, resulting in large volume and large space occupancy, which cannot meet the flatness needs of modern shapes.
采用多个PCB板沿厚壁光导的长度方向随型布置，设置夹角和花纹，优化准直结构和全反射面，LED灯的光轴与准直结构的夹角相等，减少PCB板与厚壁光导的间距，实现灯具的扁平化。
The volume of the car lights is reduced and the space occupation is reduced, which adapts to the trend of modern styling and meets the flattening needs of lamps.
Smart Images
Figure CN222210026U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to a non-direct thick-wall light guide lamp and a vehicle. Background Art
[0002] Thick-walled light guide lamps include direct-emitting type and indirect-emitting type, both of which include a light source 01 and a thick-walled light guide 02, such as Figure 1 As shown in FIG. 1 , it is a schematic diagram of the structure of a direct-type thick-walled light guide lamp. Figure 1 As shown in FIG. 1 , it is a schematic diagram of the structure of a direct-type thick-walled light guide lamp. Figure 2 The figure shows the structure of a non-direct thick-wall light guide lamp.
[0003] In conventional non-direct thick-wall designs, the optical axis direction of the LED lamp is usually parallel to the collimation direction of the concentrator, and the collimation structure is axially symmetrical based on the LED optical axis. Axial symmetry here means that the normal of the collimation surface of the collimation structure coincides with the optical axis of the corresponding LED. When the shape of the light-emitting surface is irregular, there is a large drop in the shape of the light-emitting surface, and the length is long, due to the supplier's restrictions on the length of the PCB, the traditional solution is to split it into multiple PCBs, and the multiple PCBs are located on the same plane and spliced. This structural setting will cause the entire headlight to be larger in size and occupy a lot of space, which cannot meet the styling requirements for flat lamps. With the development of current styling trends, the shape of the entire lamp is moving towards a flatter trend, and there is a demand for compression of the space inside the lamp. Lamps with traditional structures cannot adapt to customer styling. Utility Model Content
[0004] In view of this, the utility model provides a non-direct thick-wall light guide lamp, which meets the flattening requirements of the lamp, has a smaller lamp body and occupies less space.
[0005] The utility model also provides a vehicle.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] An indirect thick-wall light guide lamp, comprising:
[0008] Thick-walled light guides;
[0009] PCB boards, at least two of which are provided, and different PCB boards are arranged along the length direction of the thick-walled light guide;
[0010] The thick-walled light guide comprises a collimating structure, a total reflection surface and a light emitting surface which are sequentially arranged along the light path direction, and a plurality of the collimating structures are arranged along the length direction of the thick-walled light guide; an LED lamp is mounted on the PCB board, and each of the collimating structures is arranged corresponding to one of the LED lamps, and an angle between an optical axis direction of the LED lamp and a collimating direction of the corresponding collimating structure is a first angle, and an angle between an optical axis of the LED lamp and a normal direction of a collimating surface of the corresponding collimating structure is a second angle, and the first angle is equal to the second angle.
[0011] Optionally, adjacent PCB boards have an angle in their corresponding extension directions.
[0012] Optionally, the first angle is 0-45°.
[0013] Optionally, a first pattern is arranged on the total reflection surface, and the first pattern is a stripe pattern, a checkered pattern or a step pattern.
[0014] Optionally, a second pattern is arranged on the light emitting surface, and the second pattern is a stripe-shaped, checkered or step-shaped pattern.
[0015] Optionally, the optical axis direction of the LED lamp is arranged perpendicular to the mounting surface of the PCB board.
[0016] Optionally, the collimating structure and the optical axis of the corresponding LED lamp are distributed asymmetrically.
[0017] Optionally, the surface of the collimating structure is provided with patterns or leather grains.
[0018] Optionally, four PCB boards are provided, and the four PCB boards are arranged along the length direction of the thick-walled light guide.
[0019] It can be seen from the above technical scheme that the non-direct thick-walled light guide lamp provided by the utility model comprises a thick-walled light guide and a PCB board, and an LED lamp is installed on the PCB board. Among them, the thick-walled light guide comprises a collimating structure, a total reflection surface and a light-emitting surface arranged in sequence along the light path direction, and the light of the LED lamp is converged and collimated through the collimating structure to enter the thick-walled light guide, and then the propagation direction of the light is changed through the total reflection surface, and the light is refracted through the light-emitting surface. At least two PCB boards are provided, and the multiple PCB boards are arranged along the length direction of the thick-walled light guide. In the non-direct thick-walled light guide lamp provided by the utility model, the PCB boards are arranged in multiples, and the multiple PCB boards are arranged along the length direction of the thick-walled light guide, that is, the multiple PCB boards are spliced and arranged along the arc direction of the thick-walled light guide, so that the distance between different PCB boards and the thick-walled light guide is small. Compared with the splicing arrangement of multiple PCB boards on the same plane in the prior art, the distance between the PCB board and the thick-walled light guide is optimized, so that the volume of the entire car lamp is small, the flattening requirements of the lamp are met, and the space occupied is small.
[0020] The utility model also provides a vehicle, comprising a headlight, wherein the headlight is the above-mentioned indirect thick-wall light guide lamp. Since the headlight has the above-mentioned indirect thick-wall light guide lamp, it has the advantages of the above-mentioned indirect thick-wall light guide lamp, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a structural schematic diagram of a direct-type thick-walled light guide lamp in the prior art;
[0023] Figure 2 It is a structural schematic diagram of a non-direct thick-walled light guide lamp in the prior art;
[0024] Figure 3 A schematic structural diagram of an angle of a non-direct thick-walled light guide lamp provided by an embodiment of the utility model;
[0025] Figure 4 A schematic structural diagram of a first angle of a non-direct thick-walled light guide lamp provided by an embodiment of the utility model;
[0026] Figure 5 A schematic structural diagram of a first angle and a second angle of a non-direct thick-wall light guide lamp provided in an embodiment of the utility model;
[0027] Figure 6A schematic diagram of a partially enlarged structure of the non-direct thick-walled light guide lamp provided by an embodiment of the utility model at another angle;
[0028] Figure 7 A schematic diagram of a partially enlarged structure of the non-direct thick-wall light guide lamp provided by an embodiment of the utility model at another angle;
[0029] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure at the AA position in FIG.
[0030] Fig. 9 A schematic diagram of the light conduction structure in a thick-walled light guide provided in an embodiment of the utility model.
[0031] in:
[0032] 01. Light source; 02. Thick-walled light guide;
[0033] 1. Thick-walled light guide;
[0034] 101. light emitting surface; 102. collimation structure; 103. total reflection surface;
[0035] 2. PCB board;
[0036] 3. LED light;
[0037] 4. Optical axis;
[0038] 5. Alignment direction;
[0039] 6. The first angle;
[0040] 7. Normal to the collimation surface;
[0041] 8. Second angle;
[0042] 9. Collimate the tangent line at the vertex. DETAILED DESCRIPTION
[0043] The utility model discloses a non-direct thick-wall light guide lamp, which meets the flattening requirement of lamps, has a smaller lamp body and occupies less space.
[0044] The utility model also discloses a vehicle.
[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0046] See also Figures 3 to 9 The non-direct thick-wall light guide lamp of the utility model comprises a long and narrow thick-wall light guide 1 and a PCB board 2, on which an LED lamp 3 is mounted. The thick-wall light guide 1 comprises a collimating structure 102, a total reflection surface 103 and a light emitting surface 101 arranged in sequence along the light path direction, and the light of the LED lamp 3 is converged and collimated through the collimating structure 102 to enter the thick-wall light guide 1, and then changes the propagation direction of the light through the total reflection surface 103, and refracts the light through the light emitting surface 101. At least two PCB boards 2 are provided, and the multiple PCB boards 2 are arranged in a random manner along the length direction of the thick-wall light guide 1.
[0047] In this embodiment, the thick-walled light guide 1 is a thick-walled light guide with a large height difference in the length and width directions. Two adjacent PCB boards 2 have an angle in their corresponding extension directions, so as to fit the shape of the light emitting surface 101 as much as possible and save space.
[0048] The “indirect” in the indirect thick-wall light guide lamp means that the thick-wall light guide changes the propagation direction of the light through the total reflection surface 103 .
[0049] like Figure 3 As shown, four PCB boards 2 are provided, and the four PCB boards 2 are arranged along the length direction of the thick-walled light guide 1. If there are four PCB boards 2, two adjacent PCB boards 2 have an angle in their corresponding extension directions.
[0050] The collimating structure 102 is arranged close to the LED lamp 3, and is used to converge and collimate the light emitted by the LED lamp 3. There are a plurality of collimating structures 102, and the plurality of collimating structures 102 are arranged along the length direction of the thick-walled light guide 1, such as Figure 3 and Figure 4 As shown. Each collimating structure 102 is arranged corresponding to an LED lamp 3, the angle between the optical axis 4 of the LED lamp 3 and the collimating direction 5 of the corresponding collimating structure 102 is a first angle 6, the angle between the optical axis 4 of the LED lamp 3 and the normal 7 of the collimating surface of the corresponding collimating structure 102 is a second angle 8, and the first angle 6 is equal to the second angle 8. The normal 7 of the collimating surface of the collimating structure 102 is perpendicular to the tangent 9 of the collimating surface vertex of the collimating structure 102. In other words, the angle between the PCB board 2 and the tangent 9 of the collimating surface vertex is the same as the first angle 6.
[0051] In the non-direct thick-wall light guide lamp of the utility model, the PCB board 2 is arranged in multiple pieces, and the multiple PCB boards 2 are arranged along the length direction of the thick-wall light guide 1, that is, the multiple PCB boards 2 are spliced and arranged along the arc direction of the thick-wall light guide 1, so that the distance between different PCB boards 2 and the thick-wall light guide 1 is small. Compared with the splicing arrangement of multiple PCB boards on the same plane in the prior art, the distance between the PCB board 2 and the thick-wall light guide 1 is optimized, so that the volume of the entire car lamp is small, the flattening requirement of the lamp is met, and the space occupied is small.
[0052] In order to facilitate disassembly and assembly, the LED lamp 3 is plugged into the PCB board 2 .
[0053] In one embodiment, the first angle 6 is in the range of 0 to 45°. A first pattern is arranged on the total reflection surface 103, wherein the first pattern is a stripe pattern, a checkered pattern or a step pattern, and the first pattern is used to evenly diffuse the collimated light.
[0054] Furthermore, a second pattern is arranged on the light emitting surface 101, and the second pattern is a stripe-shaped, checkered or stepped pattern. The arrangement of the second pattern facilitates the uniform lighting of the lamp.
[0055] It can be understood that the optical axis direction of the LED lamp 3 is perpendicular to the mounting surface of the PCB board 2 .
[0056] The collimating structure 102 is asymmetrically distributed with respect to the optical axis of the LED lamp 3, such as Figure 4 As shown, the collimating surface vertex of the collimating structure 102 is offset on the collimating surface.
[0057] In one embodiment, the surface of the collimating structure 102 is provided with patterns or leather grains, so that the path of the light emitted by the LED lamp 3 becomes dispersed and more uniform.
[0058] In a specific embodiment, referring to Figure 3 Four PCB boards 2 are provided, and the four PCB boards 2 are arranged along the length direction of the thick-walled light guide 1. A plurality of LED lamps 3 are installed on each PCB board 2, and the number of the LED lamps 3 corresponds to the number of the collimating structures 102.
[0059] The non-direct thick-wall light guide lamp of the present invention has at least two LED lamps 3 inside or on the surface, and the optical axes 4 of at least two LED lamps 3 are arranged non-parallel, and there is a first angle 6 between the optical axis 4 of the LED lamp 3 and the collimation direction 5. In front of the LED lamp 3 is a collimation structure 102, and the collimation structure 102 and the optical axis 4 of the corresponding LED lamp 3 are asymmetrically distributed, and the asymmetrical distribution here means that the normal 7 of the collimation surface of the collimation structure 102 and the optical axis 4 of the corresponding LED lamp 3 do not coincide, and the collimation structure 102 converges and collimates the divergent light of the LED lamp 3, changes the direction of the light through the total reflection surface 103, and then emits through the light emitting surface 101.
[0060] The non-direct thick-walled light guide lamp of the utility model has different PCB boards 2 and thick-walled light guides 1 arranged in accordance with the shape, that is, multiple PCB boards 2 are located on multiple intersecting planes, and there is a certain angle between different PCB boards 2. Due to the different placement angles of the PCB boards 2, the directions of the optical axes 4 of the LED lights 3 on different PCB boards 2 are different. The thick-walled light guide 1 that is evenly lit through the same collimation direction 5 can place multiple PCB boards 2 according to the shape trend, which greatly reduces the demand for space and adapts to the shape requirements.
[0061] The utility model also provides a vehicle, comprising a vehicle lamp, wherein the vehicle lamp is the above-mentioned non-direct thick-wall light guide lamp.
[0062] In the description of this solution, it should be understood that the terms "upper", "lower", "vertical", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this solution.
[0063] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this solution, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0064] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0065] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A non-direct thick-walled light guide lamp, characterized in that: include: Thick-walled light guides; PCB boards, at least two of which are provided, and different PCB boards are arranged along the length direction of the thick-walled light guide; The thick-walled light guide comprises a collimating structure, a total reflection surface and a light emitting surface which are sequentially arranged along the light path direction, and a plurality of the collimating structures are arranged along the length direction of the thick-walled light guide; an LED lamp is mounted on the PCB board, and each of the collimating structures is arranged corresponding to one of the LED lamps, and an angle between an optical axis direction of the LED lamp and a collimating direction of the corresponding collimating structure is a first angle, and an angle between an optical axis of the LED lamp and a normal direction of a collimating surface of the corresponding collimating structure is a second angle, and the first angle is equal to the second angle.
2. The indirect thick-walled light guide lamp according to claim 1, characterized in that: The adjacent PCB boards have an included angle in their corresponding extending directions.
3. The indirect thick-walled light guide lamp according to claim 1 or 2, characterized in that: The first angle is 0-45°.
4. The indirect thick-walled light guide lamp according to claim 1 or 2, characterized in that: The total reflection surface is provided with a first pattern, and the first pattern is a stripe pattern, a checkered pattern or a step pattern.
5. The indirect thick-walled light guide lamp according to claim 1 or 2, characterized in that: The light emitting surface is provided with a second pattern, and the second pattern is a stripe-shaped, square-shaped or step-shaped pattern.
6. The indirect thick-walled light guide lamp according to claim 1, characterized in that: The optical axis direction of the LED lamp is perpendicular to the mounting surface of the PCB board.
7. The indirect thick-walled light guide lamp according to claim 1, characterized in that: The collimating structure is distributed asymmetrically with respect to the optical axis of the corresponding LED lamp.
8. The indirect thick-walled light guide lamp according to claim 1, characterized in that: The surface of the collimating structure is provided with patterns or leather grains.
9. The indirect thick-walled light guide lamp according to claim 1, characterized in that: Four PCB boards are provided, and the four PCB boards are arranged along the length direction of the thick-walled light guide.
10. A vehicle, comprising a lamp, characterized in that: The vehicle lamp is the indirect thick-walled light guide lamp as described in any one of claims 1 to 9.