Cut-off line forming structure, light emitting module and vehicle lamp

Abstract

The utility model provides a cut-off line forming structure, a light emitting module and a car lamp, and relates to the technical field of car lighting, the cut-off line forming structure comprises a supporting piece and a plurality of baffles arranged on the supporting piece, the baffles are sequentially arranged at intervals in the car height direction, the baffles and the supporting piece are integrally formed, and a cut-off line structure is formed at the end of each baffle. The cut-off line structures of the baffles are used for forming a plurality of sub cut-off lines which are connected with one another in the emergent light pattern. The integrated design is favorable for reducing the manufacturing cost and improving the production efficiency on one hand, and ensures that the relative positions of the multiple baffles are kept consistent on the other hand, the problem of position deviation is solved, and therefore the multiple sub cut-off lines can be accurately connected, and the production efficiency is improved. The problem that a plurality of sub cut-off lines are staggered and cannot be connected when a plurality of traditional light sources are arranged in the height direction of the vehicle is effectively solved. In addition, an additional fine-tuning light system is not needed, so that the overall cost is further reduced, and meanwhile, the situation of inaccurate dimming caused by overlarge tolerance of the fine-tuning light system is avoided.

Description

Technical Field

[0001] The present application relates to the field of automobile lighting technology, and in particular to a cut-off line forming structure, a light output module and an automobile lamp. Background Art

[0002] With the advancement of industrialization, cars have become an indispensable means of transportation in people's lives. As an important part of the automobile lighting system, headlights play a vital role in improving automobile performance and safety performance. Consumers have higher and higher design requirements for headlights. They not only expect headlights to provide good lighting effects, but also expect headlights to occupy small space to adapt to the compact design of modern cars. Among them, the low beam headlight in the headlight has a short refraction distance and a large illumination range. It is a lamp used for close-range lighting. Multiple low beam heads are usually installed in the headlights on both sides of the front of the car along the width or height of the car.

[0003] However, when multiple low beam lights are arranged along the height of the vehicle, the low beam cut-off lines are easily staggered and cannot be connected. In order to solve the above problems, some new headlights have added a micro-dimming system. However, the addition of the micro-dimming system will increase the overall cost of the headlights, and because the micro-dimming system has a large tolerance, there are inaccurate dimming in actual production, which results in multiple low beam light patterns not being able to be closely connected. Utility Model Content

[0004] The purpose of the present application is to provide a cut-off line forming structure, a light output module and a vehicle lamp in view of the deficiencies in the above-mentioned prior art.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] An embodiment of the present application provides a cut-off line forming structure, including a support member and a plurality of baffles arranged on the support member, wherein the plurality of baffles are arranged in sequence and spaced apart along a vehicle height direction, the plurality of baffles are integrally formed with the support member, and a cut-off line structure is formed at the end of each baffle, and the cut-off line structure of the plurality of baffles is used to form a plurality of sub-cut-off lines connected to each other in a light output pattern.

[0007] Optionally, the support member is a frame structure, the frame structure has light-transmitting holes corresponding to some of the baffles, and some of the baffles are connected to the boundaries of the corresponding light-transmitting holes.

[0008] Optionally, the baffle is a reflective baffle.

[0009] An embodiment of the present application also provides a light emitting module, comprising a light source, a light emitting element and any one of the above-mentioned cut-off line forming structures, wherein the light source, the cut-off line forming structure and the light emitting element are arranged in sequence along the light path, and the light emitted by the light source is emitted after passing through the cut-off line forming structure and the light emitting element in sequence to form a light emitting light pattern with a cut-off line, and the cut-off line of the light emitting light pattern is composed of sub-cut-off lines of the cut-off line forming structure connected to each other.

[0010] Optionally, the light output module further includes a primary optical element located at the light output side of the light source, and the light emitted by the light source is converged by the primary optical element and incident on the light output element after forming a structure through a cutoff line.

[0011] Optionally, the cut-off line forming structure and the primary optical element are integrally formed, or the cut-off line forming structure and the primary optical element are independently provided.

[0012] Optionally, the light output module further includes a mounting bracket, and the light output element is mounted on the mounting bracket.

[0013] Optionally, the light output module further includes a circuit board, and the light source is mounted on the circuit board.

[0014] Optionally, the light output module further includes a heat sink, and the circuit board is mounted on the heat sink.

[0015] An embodiment of the present application also provides a vehicle lamp, comprising any one of the above-mentioned light output modules.

[0016] The beneficial effects of this application include:

[0017] The present application provides a cutoff line forming structure, including a support member and a plurality of baffles arranged on the support member, the plurality of baffles are arranged in sequence along the vehicle height direction, the plurality of baffles are integrally formed with the support member, a cutoff line structure is formed at the end of each baffle, and the cutoff line structure of the plurality of baffles is used to form a plurality of sub-cutoff lines that are connected to each other in the light output light pattern. The one-piece design helps to reduce manufacturing costs, improve production efficiency, and enhance the stability and reliability of the structure on the one hand, and ensures that the relative positions of the plurality of baffles remain consistent, eliminating the problem of position deviation, so that the plurality of sub-cutoff lines can be accurately connected, effectively solving the problem of the plurality of sub-cutoff lines being staggered and unable to connect when the traditional multi-light source is arranged along the vehicle height direction. In addition, since no additional fine-dimming system is required, the overall cost is further reduced, and at the same time, the inaccurate dimming caused by the excessive tolerance of the fine-dimming system is avoided. In summary, this new cutoff line forming structure has significant technical effects in optimizing the connection of light patterns, reducing costs, and improving production stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a cut-off line forming structure provided in an embodiment of the present application;

[0020] Figure 2 One of the structural schematic diagrams of a light output module provided in an embodiment of the present application;

[0021] Figure 3 A second structural schematic diagram of a light output module provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of another light output module provided in an embodiment of the present application.

[0023] Icons: 1-cutoff line forming structure; 11-support member; 111-light-transmitting hole; 12-baffle; 121-cutoff line structure; 2-light-emitting element; 3-primary optical element; 4-mounting bracket; 5-circuit board; 6-heat sink. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this 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 cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The present application embodiment provides a cut-off line forming structure 1, such as Figure 1 As shown, it includes a support member 11 and a plurality of baffles 12 arranged on the support member 11, the plurality of baffles 12 are arranged in sequence along the vehicle height direction, the plurality of baffles 12 are integrally formed with the support member 11, and a cut-off line structure 121 is formed at the end of each baffle 12, and the cut-off line structure 121 of the plurality of baffles 12 is used to form a plurality of sub-cut-off lines connected to each other in the light emitting pattern.

[0030] Specifically, the cutoff line forming structure 1 includes a support 11 and a plurality of baffles 12 arranged on the support 11, the plurality of baffles 12 are arranged in sequence along the vehicle height direction, the plurality of baffles 12 are integrally formed with the support 11, and a cutoff line structure 121 is formed at the end of each baffle 12 away from the support 11, and the cutoff line structure 121 of the plurality of baffles 12 is used to form a plurality of sub-cutoff lines that are connected to each other in the light output light pattern. The one-piece design helps to reduce manufacturing costs, improve production efficiency, and enhance the stability and reliability of the structure on the one hand, and ensures that the relative positions of the plurality of baffles 12 remain consistent, eliminating the problem of position deviation, so that the plurality of sub-cutoff lines can be accurately connected, effectively solving the problem that the plurality of sub-cutoff lines are staggered and cannot be connected when the traditional multi-light source is arranged along the vehicle height direction. In addition, since no additional fine-dimming system is required, the overall cost is further reduced, and at the same time, the inaccurate dimming caused by the excessive tolerance of the fine-dimming system is avoided. In summary, this new cutoff line forming structure 1 has significant technical effects in optimizing the connection of light patterns, reducing costs, and improving production stability.

[0031] Optionally, the support member 11 is a frame structure, the frame structure has light-transmitting holes 111 corresponding to part of the baffles 12 , and part of the baffles 12 are connected to the boundaries of the corresponding light-transmitting holes 111 .

[0032] Specifically, Figure 1 As shown, the support member 11 adopts a frame structure design, and the frame structure is provided with light holes 111 corresponding to some of the baffles 12. These light holes 111 allow the light emitted by multiple light sources to pass through the gaps between adjacent baffles 12, forming a light output light pattern with a bright and dark cut-off line. Some of the baffles 12 are connected to the boundaries of the corresponding light holes 111, forming a "sun"-shaped structure as a whole.

[0033] For example, when three light sources arranged along the vehicle height are provided in the vehicle, the number of baffles 12 is also three, and each baffle 12 is located below the corresponding light source along the vehicle height. In this case, there are two light transmission holes 111 in the frame structure, and each light transmission hole 111 is located between two adjacent baffles 12. Specifically, the first baffle 12 is located at the upper boundary of the first light transmission hole 111 along the vehicle height, the second baffle 12 is located at the upper boundary of the second light transmission hole 111, and the third baffle 12 is located at the lower boundary of the second light transmission hole 111.

[0034] This design can be extended to more light source configurations. When there are four light sources arranged along the height of the vehicle in the car, four baffles 12 and three light holes 111 are correspondingly arranged in the frame structure; when there are five light sources arranged along the height of the vehicle in the car, there are five baffles 12 and four light holes 111. Through this design, it is ensured that each baffle 12 is in the corresponding position and the light hole 111 is accurately positioned, so that the light distribution is uniform and the sub-cutoff line can be seamlessly connected.

[0035] Optionally, the baffle 12 is a reflective baffle.

[0036] Specifically, the baffle 12 adopts a reflective baffle design with a light reflection function, that is, a reflective surface is set on the surface of the baffle 12 so that the light can be reflected, which not only increases the utilization efficiency of the light, but also optimizes the distribution effect of the light. Of the light emitted by the light source, a part directly passes through the light-transmitting hole 111 and is incident on the light-emitting element 2, and the other part is reflected by the reflective baffle and is incident on the light-emitting element 2.

[0037] This dual-path design can effectively control the direction and intensity of light, avoid light scattering and unnecessary waste, improve light utilization, and ensure that more light can be effectively irradiated to the required position. Combined with the aforementioned cutoff line structure 121 design, the reflective baffle can effectively block part of the light, limit the upper and lower limits of the light, ensure that the light emission angle and intensity distribution are more accurate and uniform, avoid excessive or low lighting effects, and form the near-brightness cutoff line required by regulations.

[0038] The present application also provides a light output module, such as Figures 2 to 4 As shown, it includes a light source, a light emitting element 2 and a cut-off line forming structure 1 of any one of the above-mentioned types. The light source, the cut-off line forming structure 1 and the light emitting element 2 are arranged in sequence along the light path. The light emitted by the light source passes through the cut-off line forming structure 1 and the light emitting element 2 in sequence and then emerges to form a light emitting light pattern with a cut-off line. The cut-off line of the light emitting light pattern is composed of sub-cut-off lines of the cut-off line forming structure 1 connected to each other.

[0039] Specifically, multiple light sources are arranged in sequence along the height direction of the vehicle, and the baffles 12 of the cutoff line forming structure 1 correspond to the light sources one by one. The light emitted by the light source first passes through the cutoff line forming structure 1. The multiple baffles 12 in this structure not only play a role in blocking the light, but also through the design of the cutoff line structure 121, the light is limited to a specific limit, ensuring that the light emission angle and intensity distribution are more accurate and uniform.

[0040] Subsequently, the light is further adjusted and guided by the light emitting element 2, and finally emitted to form a light emitting pattern with a cutoff line. The cutoff line of the light emitting pattern is composed of a plurality of sub-cutoff lines in the cutoff line forming structure 1 connected to each other. This design ensures the uniformity and stability of the light emitting pattern, and effectively avoids the problem of staggered and unconnected sub-cutoff lines in the traditional design when multiple light sources are configured.

[0041] It should be noted that the light source can be a low beam light source, in which case the cut-off line forming structure 1 helps form the low beam light-dark cut-off line required by the regulations, so that the low beam light pattern meets the lighting requirements. The light source can also be a high beam light source, in which case the cut-off line forming structure 1 effectively controls the lower boundary of the light pattern, so that it is better connected with the low beam light pattern.

[0042] It should also be noted that, since the light output module adopts the above-mentioned cut-off line forming structure 1, it also has the same beneficial effects as the cut-off line forming structure 1, which will not be described in detail here.

[0043] Optionally, the light output module further includes a primary optical element 3 located at the light output side of the light source, and the light emitted by the light source is converged by the primary optical element 3 and incident on the light output element 2 after passing through the cutoff line forming structure 1 .

[0044] Specifically, Figures 2 to 4As shown, the function of the primary optical element 3 is to focus or adjust the light emitted by the light source into the required optical characteristics, and then enter the light output element 2 after passing through the cutoff line forming structure 1. The selection and arrangement of the primary optical element 3 not only affects the focusing and distribution of the light, but also can adjust the angle and intensity of the light to adapt to different driving conditions and driving needs. By adding the primary optical element 3, the light output module can further improve the utilization efficiency and control accuracy of the light. The focusing effect of the primary optical element 3 allows the light to be concentrated before entering the cutoff line forming structure 1, reducing the scattering and loss of the light. Combined with the one-piece cutoff line forming structure 1, the light efficiency of the entire system is significantly improved, and the lighting effect is more outstanding.

[0045] It should be noted that the primary optical element 3 can be a concentrator, etc., and its design takes into account the focusing and transmission efficiency of light. The concentrator can focus the light emitted by the light source into a more concentrated light beam through its specific optical design, and then form the required light output light pattern at the light output element 2, which not only improves the utilization rate of light, but also ensures the optical performance and visual effects of the light output module in different lighting modes.

[0046] Optionally, the light output module further includes a mounting bracket 4 , and the light output element 2 is mounted on the mounting bracket 4 .

[0047] Specifically, the light emitting element 2 is a lens or a lens group. Figure 2 and Figure 3 As shown, when the light emitting element 2 is a lens, the convex surface of the lens faces away from the light source. This design allows the light to be fully focused when passing through the lens, thereby forming an accurate light emitting pattern. This configuration simplifies the installation process and also ensures the accuracy of the light emitting angle and intensity distribution.

[0048] like Figure 4 As shown, when the light emitting element 2 is a lens group, two groups of lenses are respectively mounted on opposite sides of the mounting bracket 4 along the light emitting direction of the light source. Specifically, the convex surfaces of the two groups of lenses are opposite to each other, so that the light can be effectively focused and guided when passing through the lens group. This design not only improves the utilization efficiency of light, but also ensures that the light has good uniformity and stability after passing through the lens group.

[0049] It should be noted that a positioning structure should be provided on the mounting bracket 4 to enable the mounting bracket 4 to be accurately positioned, so that the light emitting element 2 can be securely mounted at the correct position.

[0050] Optionally, the light output module further includes a circuit board 5 , and the light source is mounted on the circuit board 5 .

[0051] Specifically, Figures 2 to 4As shown, the circuit board 5 provides a stable foundation, and the light source is fixedly mounted on the circuit board 5 . The correct position and angle are ensured through precise positioning, so that the light source can effectively emit light and the light can accurately enter the primary optical element 3 .

[0052] At the same time, a positioning structure is also set on the primary optical element 3, and the primary optical element 3 is installed on the circuit board 5. Through close integration with the light source, optical performance problems caused by position deviation are reduced, ensuring that the light obtains the best focusing effect when passing through the primary optical element 3.

[0053] In addition, the use of the circuit board 5 also simplifies the arrangement of electrical connections. All necessary electrical connections can be implemented directly on the circuit board 5, which not only reduces the number of independent wires, but also reduces the complexity of wiring and potential failure points. The circuit design on the circuit board 5 can ensure stable power supply and signal transmission of the light source and the primary optical element 3, and improve the reliability of the entire light output module.

[0054] Optionally, the light output module further includes a heat sink 6 , and the circuit board 5 is mounted on the heat sink 6 .

[0055] Specifically, Figures 2 to 4 As shown, the light source and the primary optical element 3 are mounted on a circuit board 5, and the circuit board 5 is fixed on a radiator 6. The function of the radiator 6 is to effectively absorb and dissipate the heat generated during operation, prevent the light source and other electronic components from overheating, and thus ensure the long-term stable operation of the system. Through this design, the radiator 6 can directly absorb heat from the light source and the circuit board 5 and quickly dissipate it into the environment.

[0056] At the same time, the mounting bracket 4 is also fixed on the heat sink 6, making the structure of the entire light output module more compact, reducing the relative movement between components, and improving the overall stability of the light output module. This integrated design not only improves production efficiency, but also simplifies the maintenance process.

[0057] In addition, the addition of the heat sink 6 significantly prolongs the service life of the light source and other electronic components. Through effective heat dissipation management, the influence of overheating on the performance and life of the components is prevented, ensuring that the light output module can operate stably in various working environments.

[0058] Optionally, the cut-off line forming structure 1 is formed integrally with the primary optical element 3 .

[0059] Specifically, Figure 2 and Figure 3As shown, the cut-off line forming structure 1 is integrally formed with the primary optical element 3, and forms a positioning system with the circuit board 5 and the mounting bracket 4, so that the entire system can be easily and accurately positioned during installation and aligned with the light source. Such a design ensures that there is no deviation in the position of multiple sub-cut-off lines, avoiding light pattern problems caused by inaccurate positions.

[0060] Secondly, the integrated cut-off line forming structure 1 and the primary optical element 3 make the installation process simple and efficient through the precise positioning structure, without the need for additional fine dimming structure and complex dimming process. This not only improves the production efficiency of the lamp, but also significantly improves the yield rate and reduces the scrap rate caused by improper dimming.

[0061] In addition, this one-piece design also improves the stability and reliability of the system. Since each component has been precisely positioned during the production process, there will be no positional offset after installation, thus ensuring the accuracy and consistency of the light output angle and intensity distribution, forming the light and dark cutoff line required by regulations.

[0062] Alternatively, if Figure 4 As shown, the cut-off line forming structure 1 and the primary optical element 3 can also be independently arranged. The independent arrangement design makes it more flexible when maintaining and replacing components. They can be adjusted or replaced individually according to specific needs, simplifying the maintenance process. In addition, the optical characteristics can be adjusted more finely to meet different lighting needs and design requirements.

[0063] The embodiment of the present application also provides a vehicle lamp, comprising any one of the above-mentioned light output modules. Since the vehicle lamp adopts the above-mentioned light output module, it also has the same beneficial effects as the light output module, which will not be described in detail here.

[0064] The embodiment of the present application also provides a car, comprising any of the above-mentioned headlights. Since the car adopts the above-mentioned headlights, it also has the same beneficial effects as the headlights, which will not be described in detail here.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cut-off line forming structure, characterized in that: The invention comprises a support member (11) and a plurality of baffles (12) arranged on the support member (11); the plurality of baffles (12) are arranged in sequence and spaced apart in a vehicle height direction; the plurality of baffles (12) and the support member (11) are integrally formed; a cut-off line structure (121) is formed at the end of each of the baffles (12); the cut-off line structures (121) of the plurality of baffles (12) are used to form a plurality of mutually connected sub-cut-off lines in a light emission pattern.

2. The cut-off line forming structure according to claim 1, characterized in that: The support member (11) is a frame structure having light-transmitting holes (111) corresponding to a portion of the baffles (12); a portion of the baffles (12) is connected to a boundary corresponding to the light-transmitting holes (111).

3. The cut-off line forming structure according to claim 1 or 2, characterized in that: The baffle (12) is a reflective baffle.

4. A light output module, characterized in that: The invention comprises a light source, a light emitting element (2) and a cut-off line forming structure (1) as claimed in any one of claims 1 to 3, wherein the light source, the cut-off line forming structure (1) and the light emitting element (2) are arranged in sequence along a light path, and light emitted by the light source is emitted after passing through the cut-off line forming structure (1) and the light emitting element (2) in sequence to form a light emitting pattern having a cut-off line, and the cut-off line of the light emitting pattern is composed of sub-cut-off lines of the cut-off line forming structure (1) connected to each other.

5. The light output module according to claim 4, characterized in that: The light output module further comprises a primary optical element (3) located on the light output side of the light source, and the light emitted by the light source is converged by the primary optical element (3) and incident on the light output element (2) after passing through the cut-off line forming structure (1).

6. The light output module according to claim 5, characterized in that: The cut-off line forming structure (1) and the primary optical element (3) are integrally formed, or the cut-off line forming structure (1) and the primary optical element (3) are independently arranged.

7. The light output module according to any one of claims 4 to 6, characterized in that: The light output module further comprises a mounting bracket (4), and the light output element (2) is mounted on the mounting bracket (4).

8. The light output module according to any one of claims 4 to 6, characterized in that: The light output module also includes a circuit board (5), and the light source is mounted on the circuit board (5).

9. The light output module according to claim 8, characterized in that: The light output module also includes a heat sink (6), and the circuit board (5) is mounted on the heat sink (6).

10. A vehicle lamp, characterized in that: It comprises the light output module as described in any one of claims 4 to 9.

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