Roller shading structure, vehicle lamp module, vehicle lamp and vehicle

Abstract

The present application relates to a vehicle lamp, and provides a rolling wheel light shielding structure, comprising a rolling wheel, a rolling wheel seat and a mounting plate, at least one light shielding piece is arranged on the rolling wheel, a cut-off line forming structure is arranged on the light shielding piece, the rolling wheel is rotatably mounted on the rolling wheel seat, the rolling wheel seat is mounted on the mounting plate and can move along the axial direction of the rolling wheel on the mounting plate, the cut-off line forming structure for shielding a light path can be controlled by the rotation of the rolling wheel, and the left and right movement of the cut-off line forming structure is realized by the movement of the rolling wheel seat on the mounting plate, so that the illumination light shape with different shapes and different inflection point positions of bright-dark cut-off lines can be formed, and the one world function and the AFS follow-up steering function of the vehicle lamp are realized. The present application further provides a vehicle lamp module, a vehicle lamp and a vehicle.

Description

Technical Field

[0001] This invention relates to vehicle lighting devices, and more specifically, to a roller-type light-shielding structure. Furthermore, this invention also relates to a vehicle lamp module incorporating the roller-type light-shielding structure, a vehicle lamp, and a vehicle. Background Technology

[0002] To adapt to the demands of economic globalization, more and more automakers are proposing the "one-world" lighting concept to address the differences in lighting regulations across various countries and regions in order to penetrate the global automotive market. One-world lighting can be adjusted through internal structure or electronic systems to produce different types of light patterns to meet the regulatory requirements of different countries and regions. Currently, one-world lighting primarily needs to meet three regional regulations: ECE left-hand drive (compliant with ECE regulations for left-hand drive), ECE right-hand drive (compliant with ECE regulations for right-hand drive), and SAE left-hand drive (compliant with SAE standards for left-hand drive). The design of one-world lighting can significantly reduce R&D costs, expand the applicability of lighting, and align with the current cost-saving and efficiency-enhancing principles of major automakers. Lighting that meets one-world requirements is highly competitive.

[0003] The Adaptive Front-lighting System (AFS) dynamically adjusts the headlights based on the steering wheel angle, vehicle yaw rate, and speed. It adapts to the current steering angle, maintaining the light direction consistent with the vehicle's direction of travel to ensure optimal illumination of the road ahead and provide the driver with the best visibility, significantly enhancing nighttime driving safety. In poorly lit or winding road conditions, it expands the driver's field of vision and can alert oncoming vehicles in advance. Due to its robust safety features, AFS is increasingly favored by OEMs.

[0004] Most existing LED automotive light modules use a light shield to block light and create a cutoff line. The principle is as follows: Figure 21 and Figure 22 As shown, the light from light source 1 is blocked by light shield 2', and projected through lens 3' to form a near-beam cutoff line. Once the design is finalized, the light pattern cannot be adjusted. It can only meet the target light pattern set before the design, resulting in a single lighting effect and failing to achieve the "one-world" functionality.

[0005] Furthermore, Chinese patent application CN108131640A proposes a light-shielding roller module. By replacing the original baffle with a roller, the roller's circumference is divided into several independent regions along the direction of rotation. Each region has a different light-shielding structural surface, corresponding to different light cut-off lines. The roller's circumference is divided into five independent regions, each with a light-shielding structural surface designed for rural roads, urban roads, highways, high beams, and glare-free high beams. This roller module can achieve switching between low and high beams at various AFS levels, solving the problem of headlight pattern uniformity. However, it cannot achieve AFS adaptive headlight function through the light-shielding module. Existing AFS systems require a rotating mechanical structure to drive the entire low beam module to rotate left and right to achieve the left and right movement of the low beam inflection point. This rotating mechanical structure occupies a significant amount of space, which reduces the space occupied by the headlight module and may limit its performance. Summary of the Invention

[0006] The problem to be solved by the first aspect of the present invention is to provide a roller light-blocking structure that can block the light emitted by the light source, forming a left and right movement of the near-light and dark cutoff line inflection point, thereby realizing the AFS follow-up steering function.

[0007] The second aspect of the present invention aims to provide a vehicle headlight module that can achieve AFS (Adaptive Front-lighting System) adaptive steering function through a light-shielding structure.

[0008] The problem to be solved by the third aspect of the present invention is to provide a vehicle lamp with a variety of light patterns and capable of realizing AFS (Adaptive Front-lighting) adaptive steering function.

[0009] The problem to be solved by the fourth aspect of the present invention is to provide a vehicle with rich headlight patterns and capable of realizing AFS (Adaptive Front-lighting System) adaptive steering function.

[0010] To solve the above-mentioned technical problems, the first aspect of the present invention provides a roller light-shielding structure, including a roller, a roller seat and a mounting plate. At least one light-shielding element is provided on the outer peripheral surface of the roller, and the light-shielding element is provided with a cut-off line forming structure. The roller is rotatably mounted on the roller seat, and the roller seat is mounted on the mounting plate and is movable on the mounting plate along the axial direction of the roller.

[0011] Preferably, the roller is provided with a rotating shaft and is mounted on the roller seat via the rotating shaft. A drive gear is provided on the rotating shaft at one end of the roller, and a roller drive component is provided on the roller seat. The roller drive component is provided with a thread that meshes with the drive gear. In this preferred embodiment, the drive gear on the roller rotating shaft can be driven to rotate by the roller drive component, thereby driving the roller to rotate and rotating the cut-off line forming structure on the outer circumference of the roller to a position that can block the lighting light, or the rotation of the roller can move the cut-off line forming structure away from the position that can block the lighting light.

[0012] Preferably, the roller light-shielding structure of the present invention further includes a moving drive mechanism, which is disposed on the mounting plate and can drive the roller seat to move on the mounting plate. In this preferred embodiment, providing a moving drive mechanism on the mounting plate makes it easier to drive the roller seat to move on the mounting plate, thereby driving the roller to move axially.

[0013] More preferably, the moving drive mechanism includes a threaded rod, a threaded rod drive gear, and a threaded rod drive component. The roller seat is provided with a drive rack, the threaded rod has a thread that meshes with the drive rack, the threaded rod drive gear is fixed to the threaded rod, and the threaded rod drive component has a thread that meshes with the threaded rod drive gear, enabling the threaded rod drive gear to rotate, thereby driving the threaded rod to rotate. With this preferred technical solution, when the threaded rod drive component rotates, it drives the threaded rod drive gear to rotate via the thread, thereby driving the threaded rod. Furthermore, the meshing of the threaded rod's thread with the drive rack on the roller seat drives the roller seat to move on the mounting plate. Controlling the rotation direction of the threaded rod drive component controls the movement direction of the roller seat.

[0014] Preferably, the outer surface of the light-shielding member includes a first cut surface, a second cut surface, and a transition cut surface. The first cut surface protrudes from the outer circumference of the roller, and the distance between the first cut surface and the rotation center line of the roller is greater than the distance between the second cut surface and the rotation center line of the roller. The transition cut surface connects the first cut surface and the second cut surface, and the first cut surface, the second cut surface, and the transition cut surface together form the cutoff line forming structure. In this preferred embodiment, the first cut surface, the second cut surface, and the transition cut surface can block the light emitted by the light source, forming a light and dark cutoff line for the illumination pattern. By setting the position and orientation of the first cut surface, the second cut surface, and the transition cut surface, illumination patterns with various light and dark cutoff lines can be formed.

[0015] Preferably, the first and second cutting surfaces are arranged parallel to the rotation center line of the roller. This preferred technical solution enables the formation of an illumination pattern with a horizontal cutoff line between light and dark areas.

[0016] More preferably, the second cutting surface is disposed on the left side of the roller axis and the first cutting surface is disposed on the right side of the roller axis, so as to form a left-hand drive cut-off line formation structure; or, the first cutting surface is disposed on the left side of the roller axis and the second cutting surface is disposed on the right side of the roller axis, so as to form a right-hand drive cut-off line formation structure. With this preferred technical solution, disposing of the first cutting surface on the right side of the roller and the second cutting surface on the left side of the roller can form a left-hand drive lighting pattern that is lower on the left and higher on the right; disposing of the first cutting surface on the left side of the roller and the second cutting surface on the right side of the roller can form a right-hand drive lighting pattern that is higher on the left and lower on the right.

[0017] Preferably, multiple light-shielding components are provided, spaced apart circumferentially along the roller, and the cut-off lines on the multiple light-shielding components have different structures. By rotating different light-shielding components to the top of the roller, different cut-off lines of varying brightness can be formed, thus creating different lighting patterns and achieving the "One World" vehicle light function.

[0018] More preferably, the cut-off line forming structures on the plurality of light-shielding members include an ECE left-hand drive cut-off line forming structure, an ECE right-hand drive cut-off line forming structure, and an SAE cut-off line forming structure. With this preferred embodiment, the roller light-shielding structure of the present invention can block the light emitted by the light source, forming ECE left-hand drive lighting patterns, ECE right-hand drive lighting patterns, and SAE left-hand drive lighting patterns that meet the regulatory requirements of the three regions.

[0019] Preferably, there are multiple rollers, which are axially connected to each other to enable synchronous rotation. In this preferred embodiment, the multiple rollers can block the light emitted by multiple light sources, forming multiple illumination areas. These illumination areas can be combined or superimposed to form the final illumination pattern.

[0020] More preferably, the rollers are provided with shafts, and the shafts between two adjacent rollers are connected to each other via a universal joint structure. With this preferred technical solution, multiple rollers can achieve relative bending in two directions along the axial direction, allowing the bending state of the multiple rollers to adapt to the optical path direction of light emitted from multiple light sources.

[0021] A second aspect of the present invention provides a vehicle lighting module, comprising a light source, a primary optical element, a roller light-shielding structure and a lens provided in the first aspect of the present invention, arranged sequentially along the light-emitting direction.

[0022] Preferably, multiple light sources are provided, and the primary optical element is a condenser. The condenser includes multiple light-incident structures and multiple light-outcident structures. The roller light-shielding structure includes multiple rollers. Each light source corresponds to one light-incident structure, one light-outcident structure, and one roller. In this preferred embodiment, the light emitted by each light source is introduced through a corresponding light-incident structure, transmitted through the condenser, and then emitted through the corresponding light-outcident structure. After being blocked by the roller light-shielding structure, the light is directed towards the lens and projected out through the lens, forming an illumination area with corresponding light and dark cutoff lines. Multiple illumination areas are combined and / or superimposed to form the final illumination pattern.

[0023] A third aspect of the present invention provides a vehicle lamp, which includes the vehicle lamp module provided in the second aspect of the present invention.

[0024] A fourth aspect of the present invention provides a vehicle that includes the headlights provided in the third aspect of the present invention.

[0025] Through the above technical solution, the present invention achieves the following beneficial effects:

[0026] 1. This invention designs a light-shielding component with a cutoff line forming structure on the roller body. The position of the light-shielding component changes with the rotation of the roller. When the light-shielding component rotates to a set position, the cutoff line forming structure blocks the light emitted by the light source, forming an illumination pattern with bright and dark cutoff lines. When the cutoff line forming structure leaves that position, an illumination pattern without cutoff line forming structure is formed. The position switching of the light-shielding component is quick and convenient, accurate, and with low switching noise.

[0027] 2. This invention mounts a roller on a roller seat and moves the roller seat in the axial direction of the roller to achieve left and right translation of the cutoff line forming structure, thereby realizing the left and right movement of the inflection point of the light cutoff line in the illumination pattern, which facilitates the realization of the AFS following steering function of the vehicle headlight. The structure is simple and occupies little space.

[0028] 3. The present invention can set different light-shielding components on the circumference of the roller, and each light-shielding component is provided with a cutoff line forming structure corresponding to different lighting light shape requirements. By controlling the rotation position of the roller, different light-shielding components can be used to block the light emitted by the light source, forming an lighting light shape that meets the regulatory requirements of different regions, thus realizing the one-world function. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of one embodiment of the roller light-shielding structure of the present invention;

[0030] Figure 2This is a schematic diagram of the roller in one embodiment of the roller light-shielding structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the left-hand side of the roller in a certain embodiment of the roller shading structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the light pattern of the left-hand drive cutoff line according to SAE standards;

[0033] Figure 5 This is a schematic diagram of the light pattern of the left-hand drive cutoff line according to the ECE standard;

[0034] Figure 6 This is a schematic diagram of the right-hand drive roller's light-shielding state in one embodiment of the roller light-shielding structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the light pattern of the right-hand drive cutoff line according to the ECE standard;

[0036] Figure 8 This is a schematic diagram of the translation of the inflection point of the structure formed by the left-hand drive cutoff line;

[0037] Figure 9 This is a schematic diagram showing the left and right endpoints of the inflection point of the light and dark cutoff line in the left-hand drive cutoff line light pattern.

[0038] Figure 10 This is a schematic diagram of the translation of the inflection point of the structure formed by the right-hand drive cutoff line;

[0039] Figure 11 This is a schematic diagram showing the left and right endpoints of the inflection point of the cutoff line in the light pattern of the right-hand drive cutoff line;

[0040] Figure 12 This is a schematic diagram of the connection state of multiple rollers in one embodiment of the roller light-shielding structure of the present invention;

[0041] Figure 13 yes Figure 12 Enlarged view of part A in the middle;

[0042] Figure 14 This is a schematic diagram of the structure of one embodiment of the vehicle headlight module of the present invention;

[0043] Figure 15 This is a schematic diagram of the optical path of an embodiment of the vehicle headlight module of the present invention;

[0044] Figure 16 This is a schematic diagram of another embodiment of the vehicle headlight module of the present invention;

[0045] Figure 17 yes Figure 16 Top view of the optical components;

[0046] Figure 18 yes Figure 17Azimuthal section of the central BB;

[0047] Figure 19 This is a schematic diagram of some optical elements in another embodiment of the vehicle headlight module of the present invention;

[0048] Figure 20 yes Figure 19 A view from another angle;

[0049] Figure 21 This is a structural schematic diagram of a vehicle lighting module in the prior art;

[0050] Figure 22 This is a schematic diagram of the light pattern formation of a vehicle headlight module in the prior art.

[0051] Explanation of reference numerals in the attached figures

[0052] Detailed Implementation

[0053] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0054] It should also be noted that some directional terms used in the following description to clearly illustrate the technical solution of the present invention, such as "up," "down," "left," "right," "front," and "rear," are all derived from the meanings of the vehicle's normal driving position when the headlight module is applied to the vehicle. The front of the vehicle is considered the "front" position. These terms are used only for the convenience of describing the present invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0056] like Figure 1As shown, one embodiment of the roller light-shielding structure of the present invention includes a roller 1, a roller seat 2, and a mounting plate 3. The roller 1 is mounted on the roller seat 2 and is rotatable on the roller seat 2. At least one axially extending light-shielding member 11 is provided on the outer peripheral surface of the roller 1. The light-shielding member 11 protrudes from the outer peripheral surface of the roller 1. When the roller 1 rotates on the roller seat 2, the position of the light-shielding member 11 relative to the roller seat 2 can be changed, and the light emitted by the vehicle headlight source can be blocked by the light-shielding member 11 on the side of the roller 1 opposite to the roller seat 2. A cutoff line forming structure is provided on the light-shielding member 11. After the light emitted by the light source is blocked by the cutoff line forming structure, it is projected out by a lens, thereby forming an illumination light pattern with a bright and dark cutoff line corresponding to the shape of the cutoff line forming structure. When multiple light-shielding elements 11 are provided on the roller 1, cutoff line formation structures of different shapes can be set on the multiple light-shielding elements 11. By rotating the roller 1, different light-shielding elements 11 are rotated to the top of the roller 1 on the opposite side of the roller seat 2, so that different light-shielding elements 11 can be used to block the light emitted by the light source, forming an illumination light pattern with different shapes of light and dark cutoff lines. The roller seat 2 is mounted on the mounting plate 3 and can move left and right along the axial direction of the roller 1 on the mounting plate 3. The left and right movement of the roller seat 2 also drives the roller 1 on the roller seat 2 and the light-shielding elements 11 on the roller 1 to move left and right. The cutoff line formation structure on the light-shielding element 11 can block the light emitted by the light source 5 at different positions on the left and right, so that the light and dark cutoff lines and their inflection points in the formed illumination light pattern can move continuously left and right, which facilitates the realization of the AFS follow-up steering function. The left and right movement of the roller seat 2 on the mounting plate 3 can be achieved by the moving drive mechanism 4, which can be a mechanical actuation mechanism or a motor, and can be linked with the vehicle's steering mechanism. The mounting plate 3 can be an independent solid structure, or it can be part of the lighting module structure or the headlight housing.

[0057] The roller 1 can be made of various materials such as metal and plastic (e.g., PC-HT (high-temperature resistant polycarbonate)). In practical applications, a rotating shaft 12 is usually provided at the axis of the roller 1. The rotating shaft 12 can rotate under the drive of a stepper motor or a servo motor, thereby accurately controlling the rotational position of the roller 1. The light-shielding member 11 is a strip structure, which can be fixed to the surface of the roller 1 or integrally formed on the roller 1. The outer surface of the light-shielding member 11 can be an arc surface, and the cross-section of the circumference of the arc surface is concentric with the cross-section of the circumference of the roller 1. The central angle corresponding to the width of the arc surface is 2-10°. As a specific solution, a roller drive gear 13 is fixedly connected to one end of the rotating shaft 12, and a roller drive member 14 is provided on the roller seat 2. The roller drive member 14 is provided with a thread that matches the roller gear 13. When the roller drive member 14 rotates, it can drive the roller drive gear 13 and drive the roller 1 to rotate. The roller drive component 14 can be mounted on the shaft of the motor, and the motor can be mounted on the other side of the mounting plate 3. The motor shaft passes through the mounting plate 3 and is connected to the roller drive component 14.

[0058] In some embodiments of the roller light-shielding structure of the present invention, such as Figure 1 As shown, the roller light-shielding structure of the present invention also includes a moving drive mechanism 4. The moving drive mechanism 4 is disposed on the mounting plate 3 and connected to the roller seat 2. The roller seat 2 can move left and right along the axial direction of the roller 1 on the mounting plate 3 under the drive of the moving drive mechanism 4. The moving drive mechanism 4 can be various possible drive structures, such as a lead screw, an electric push rod, a gear drive structure, etc.

[0059] As a specific embodiment of the roller light-shielding structure of the present invention, such as Figure 1 As shown, the moving drive mechanism 4 includes a threaded rod 41, a threaded rod drive gear 42, and a threaded rod drive component 43. A drive rack 21 is provided on the roller seat 2. The threaded rod 41 is parallel to the rotation center line of the roller 1. The threaded rod 41 has threads that mesh with the drive rack 21. When the threaded rod 41 rotates, it can push the roller seat 2 to move along the direction of the threaded rod 41. Changing the rotation direction of the threaded rod 41 changes the movement direction of the roller seat 2. A threaded rod drive gear 42 is fixedly connected to one end of the threaded rod 41. The threaded rod drive component 43 is located on one side of the threaded rod drive gear 42 and has threads that mesh with the threaded rod drive gear 42. When the threaded rod drive component 43 rotates, it can drive the threaded rod drive gear 42 to rotate, thereby driving the threaded rod 41 to rotate. Similarly, the threaded rod drive component 43 can be mounted on the shaft of a motor. The motor can be mounted on the other side of the mounting plate 3, with the motor shaft passing through the mounting plate 3 and connected to the threaded rod drive component 43.

[0060] In some embodiments of the roller light-shielding structure of the present invention, such as Figure 2As shown, a first cutting surface 111, a second cutting surface 112, and a transition cutting surface 113 are provided on the outer top surface of the light-shielding member 11. The first cutting surface 111 and the second cutting surface 112 can be planar or curved. When the first cutting surface 111 and the second cutting surface 112 are planar, they are usually parallel to each other and parallel to the axis of rotation of the roller 1's shaft 12. Furthermore, the distance between the first cutting surface 111 and the rotation center line of the roller 1 (i.e., the axis of rotation 12) is greater than the distance between the second cutting surface 112 and the rotation center line of the roller 1; that is, the height of the first cutting surface 111 on the outer circumferential surface of the roller 1 is greater than that of the second cutting surface 112. The second cutting surface 112 can be set to be coplanar with the outer circumferential surface of the roller 1 or higher than the outer circumferential surface of the roller 1. The transition cutting surface 113 connects the first cutting surface 111 and the second cutting surface 112, forming an inclined surface that transitions from the first cutting surface 111 to the second cutting surface 112. The first cutting surface 111, the second cutting surface 112, and the transition cutting surface 113 together form a cutoff line forming structure. When the cutoff line forming structure blocks the light emitted by the light source 5, the first cutting surface 111 blocks the light, forming the shoulder line 82 of the light-dark cutoff line of the illumination pattern. The second cutting surface 112 blocks the light, correspondingly forming the upper boundary line 81 of the light-dark cutoff line of the illumination pattern. The transition cutting surface 113 blocks the light, correspondingly forming the oblique light-dark cutoff line transition line 83 of the illumination pattern. The first cutting surface 111, the second cutting surface 112, and the transition cutting surface 113 can be set as planes, wherein the first cutting surface 111 and the second cutting surface 112 are both parallel to the tangential plane of the roller 1 at the location of the light-shielding member 11; or they can be set as cylindrical surfaces with the rotation center line of the roller 1 as the axis. When set as a cylindrical surface, small errors in the rotation position of the roller 1 will not affect the position of the light-dark cutoff line, which can reduce the precision requirements of the motor driving the rotation of the roller 1.

[0061] As a specific embodiment of the roller light-shielding structure of the present invention, such as Figure 3 As shown, the second cutting surface 112 is located on the left side of the roller 1 in the axial direction, and the first cutting surface 111 is located on the right side of the roller 1 in the axial direction. Thus, the resulting cutoff line structure blocks the light, forming a shape like... Figure 4 or Figure 5 The lighting pattern shown has a left-side light cutoff line. When the roller seat 2 moves left and right on the mounting plate 3, as... Figure 8 As shown, the first cutting surface 111, the second cutting surface 112, and the transition cutting surface 113 also move in the left and right directions. After the cutoff line forming structure blocks the light emitted by the light source, the resulting illumination light shape is as follows: Figure 9 As shown. When roller seat 2 moves to the right end, the resulting illumination beam is as follows. Figure 9As shown in Figure a, the inflection point between the shoulder line 82 and the transition line 83 of the cutoff line is located at -7° to the left and right of the 25m light distribution screen; when the roller seat 2 moves to the left end, the resulting illumination beam shape is as follows: Figure 9 As shown in Figure b, the inflection point between the shoulder line 82 and the transition line 83 of the light-dark cutoff line is located at a 15° position in the left-right direction of the 25m light distribution screen. Another embodiment of the roller light-blocking structure of the present invention is as follows... Figure 6 As shown, the first cutting surface 111 is located on the left side of the roller 1 axis, and the second cutting surface 112 is located on the right side of the roller 1 axis. The resulting cutoff line structure blocks light, thus forming a structure that... Figure 7 The illumination pattern shown has a right-hand drive cutoff line. When the roller seat 2 moves left and right on the mounting plate 3, as... Figure 10 As shown, the first cutting surface 111, the second cutting surface 112, and the transition cutting surface 113 also move in the left and right directions. After the cutoff line forming structure blocks the light emitted by the light source, the resulting illumination light shape is as follows: Figure 11 As shown. When roller seat 2 moves to the right end, the resulting illumination beam is as follows. Figure 11 As shown in Figure a, the inflection point between the shoulder line 82 and the transition line 83 of the cutoff line is located at -15° to the left and right of the 25m light distribution screen; when the roller seat 2 moves to the left end, the resulting illumination beam shape is as follows: Figure 11 As shown in Figure b, the inflection point between the shoulder line 82 of the cutoff line and the transition line 83 of the cutoff line is located at a position of 7° in the left-right direction of the 25m light distribution screen.

[0062] In some embodiments of the roller light-shielding structure of the present invention, such as Figure 2As shown, multiple light-shielding elements 11 are arranged at different positions on the outer circumference of the roller 1, and these elements are spaced apart at certain intervals. Due to differences in the requirements for the cut-off line between light and dark in different regions, the heights of the multiple cut-off line structures on the roller 1 are also different (i.e., the heights of the multiple first cutting surfaces 111 on the outer circumference of the roller 1 are not the same). The positions of the multiple cut-off line structures on the outer circumference of the roller 1 need to ensure that when any one of the light-shielding elements 11 blocks the light emitted by the light source 5, the light-shielding elements 11 at other positions will not interfere with the light. Therefore, the spacing between the multiple light-shielding elements 11 on the outer circumference of the roller 1 needs to maintain a certain angle. For example, the central angle corresponding to the arc surface between two adjacent light-shielding elements 11 can be set above 30°, and is usually set between 30-45°. The cut-off line formation structures on different light-shielding members 11 are different. When the roller 1 rotates on the roller seat 2, it can rotate the light-shielding members 11 at different positions on the outer circumference of the roller 1 to the top of the roller 1, blocking the light emitted by the light source and forming an illumination light pattern with different brightness cut-off lines. Thus, the roller light-shielding structure of the present invention can be used to form an illumination light pattern that conforms to the different regulations of different countries and regions in the world, realizing the function of One World vehicle lights.

[0063] In some embodiments of the roller light-shielding structure of the present invention, the cut-off line forming structures on different light-shielding members 11 on the outer circumference of the roller 1 include ECE left-hand drive cut-off line forming structures, ECE right-hand drive cut-off line forming structures, and SAE cut-off line forming structures. Currently, regulations in different countries and regions around the world mainly have three requirements for vehicle lighting: ECE left-hand drive requirements, ECE right-hand drive requirements, and SAE left-hand drive requirements. Among them, the light pattern of the ECE left-hand drive requirement is as follows: Figure 5 As shown, the upper boundary line 81 of the cutoff line is located on the right side of the light pattern and at 0° in the vertical direction of the 25m beam distribution screen; the shoulder line 82 of the cutoff line is located on the left side of the light pattern and at -0.57° in the vertical direction of the 25m beam distribution screen; the transition line 83 of the cutoff line extends from the lower left to the upper right at a 45° angle to the horizontal direction, connecting with the shoulder line 82 and the upper boundary line 81 of the cutoff line. The light pattern required for right-hand drive according to ECE regulations is as follows. Figure 7 As shown, the upper boundary line 81 of the cutoff line is located on the left side of the light pattern and at 0° in the vertical direction of the 25m light distribution screen; the shoulder line 82 of the cutoff line is located on the right side of the light pattern and at -0.57° in the vertical direction of the 25m light distribution screen; the transition line 83 of the cutoff line extends from the upper left to the lower right at a 45° angle to the horizontal direction, connecting with the shoulder line 82 and the upper boundary line 81 of the cutoff line. The light pattern required for left-hand drive under SAE regulations is as follows. Figure 4As shown, the upper boundary line 81 of the cutoff line is located on the right side of the light pattern and at 0° in the vertical direction of the 25m light distribution screen; the shoulder line 82 of the cutoff line is located on the left side of the light pattern and at -0.4° in the vertical direction of the 25m light distribution screen; the transition line 83 of the cutoff line extends from the lower left to the upper right at a 45° angle to the horizontal direction, connecting with the shoulder line 82 and the upper boundary line 81 of the cutoff line. The ECE left-hand cutoff line forming structure can block the light emitted by the light source, forming a structure like... Figure 5 The ECE left-hand drive lighting pattern is shown; the ECE right-hand drive cutoff line forming structure can block the light emitted by the light source, forming a pattern like... Figure 7 The ECE right-hand drive lighting pattern shown; the SAE cutoff line forming structure can block the light emitted by the light source, forming a pattern like... Figure 4 The SAE left-hand drive lighting pattern shown is thus able to form three different lighting patterns that meet the current One World vehicle lighting requirements.

[0064] In some embodiments of the roller light-shielding structure of the present invention, such as Figure 12 As shown, multiple rollers 1 are provided, and these rollers 1 are axially connected to each other. The axial connection between adjacent rollers 1 can be achieved by a rotating shaft provided on the roller 1, or by a connecting piece. In a preferred embodiment, a rotating shaft 12 is provided on each roller 1, and the multiple rollers 1 are connected to each other through their respective rotating shafts 12. The multiple rollers 1 are usually mounted on a roller seat 2. When one roller 1 rotates on the roller seat 2, it can drive the multiple rollers 1 to rotate synchronously on the roller seat 2 through the rotating shaft 12. The multiple rollers 1 can block the light emitted by multiple light sources, forming multiple light and dark cut-off lines for multiple lighting areas. The multiple lighting areas are combined and / or superimposed to form the final lighting pattern with light and dark cut-off lines.

[0065] As a specific embodiment of the roller light-shielding structure of the present invention, such as Figure 12 and Figure 13 As shown, the rotating shafts 12 of adjacent rollers 1 are interconnected via a universal joint structure 15. The universal joint structure 15 allows for relative bending of adjacent rotating shafts 12 in two different directions without affecting the transmission of rotational force between the shafts 12. Therefore, the connection state of multiple rollers 1 can be set as required by the module configuration. Figure 12 The bending state is shown. By limiting the position of the pivot 12 of each roller 1, a roller chain with a fixed bending degree can be formed by connecting multiple rollers 1, and the multiple rollers 1 on the roller chain can rotate synchronously under the drive of the same drive motor, so as to synchronously switch the multiple cutoff line formation structure that blocks the light emitted by different light sources.

[0066] like Figures 14-18As shown, one embodiment of the vehicle headlight module of the present invention includes a light source 5, a primary optical element 6, a roller light-shielding structure according to any embodiment of the present invention, and a lens 7. The primary optical element 6 can be as follows: Figure 14 and Figure 15 As shown in the diagram, the light source 5 is positioned at the first focal region of the reflector, and the roller-shaped light-blocking structure is positioned at the second focal region of the reflector; the primary optical element 6 can also be as follows: Figures 16 to 18 The condenser shown is configured such that the light source 5 is positioned relative to the light-incident structure 61 of the condenser, and the light-exit structure 62 of the condenser is positioned relative to the lens 7. The light emitted from the light source 5 is converged by the condenser and then directed towards the lens 7. A roller-shaped light-blocking structure is positioned in the optical path between the primary optical element 6 and the lens 7. The roller-shaped light-blocking structure includes a roller 1, a roller base 2, and a mounting plate 3. At least one light-blocking element 11 is provided on the roller 1, and the light-blocking element 11 has a cutoff line forming structure. This cutoff line forming structure can block the light in the optical path. The blocked light is then projected out through the lens 7, forming an illumination pattern with bright and dark cutoff lines. The roller 1 can rotate on the roller base 2 to control whether the light-blocking element 11 blocks the light, or to switch between different light-blocking elements 11 used for blocking the light. When multiple light-shielding elements 11 are installed on the roller 1, different cut-off line forming structures that comply with the regulations of different regions can be set on different light-shielding elements 11, such as ECE left-hand drive cut-off line forming structure, ECE right-hand drive cut-off line forming structure and SAE cut-off line forming structure, so as to form ECE left-hand drive lighting pattern, ECE right-hand drive lighting pattern and SAE left-hand drive lighting pattern respectively, realizing the one-world function of the vehicle lights. The roller seat 2 can move left and right along the axis of the roller 1 on the mounting plate 3, driving the cut-off line forming structure to move left and right to change the position of the light-shielding elements 11 blocking the light in the left and right directions, so that the inflection point of the bright and dark cut-off line in the formed lighting pattern can move left and right, which facilitates the realization of the AFS (Adaptive Front-lighting) function of the vehicle lights.

[0067] In some embodiments of the vehicle lighting module of the present invention, such as Figure 19 and Figure 20As shown, multiple light sources 5 (not shown in the figure) are provided. The primary optical element 6 is a condenser, which has multiple light-incident structures 61 and multiple light-outceasing structures 62. The multiple light-outceasing structures 62 can be configured as cylindrical light-outceasing surfaces, each corresponding to one light-incident structure 61. Each light source 5 corresponds to one light-incident structure 61. The roller light-blocking structure has multiple rollers 1 connected to each other by rotating shafts 12. The multiple rollers 1 are respectively arranged in the optical path between a corresponding light-outceasing structure 62 and the lens 7. The lens 7 includes a lens light-incident surface 71 formed by multiple connected lens-like curved surfaces and a smooth lens light-outceasing surface 72. The lens-like curved surface refers to a free-form surface that can be combined with the lens light-outceasing surface 72 at the corresponding position to form an optical effect similar to that of an ordinary lens. Each lens-like curved surface corresponds to one cylindrical light-outceasing surface of the condenser. Light emitted from each light source 5 is guided into a condenser via a corresponding light-incident structure 61 and exited through a corresponding light-exit structure 62. After passing through a light-shielding member 11 on a corresponding roller 1, it is directed onto a corresponding lens-like curved surface on the light-incident surface 71 of the lens and projected out by the light-exit surface 72, forming an illumination area with a cutoff line. Multiple illumination areas with cutoff lines combine and / or overlap to form the final illumination pattern. Synchronous rotation of multiple rollers 1 allows for the synchronous switching of the cutoff line forming structure for each illumination area, thereby changing the shape of the cutoff line in the final illumination pattern to meet the regulatory requirements of different regions. Moving the roller base 2 left and right enables the synchronous movement of multiple rollers 1 in the left and right directions, and the movement of the cutoff line forming structure for each illumination area in the left and right directions. This allows the inflection point of the cutoff line in the final illumination pattern to move left and right, achieving the AFS (Adaptive Front-lighting System) follow-up steering function.

[0068] The present invention also provides a vehicle lamp using a vehicle lamp module of any embodiment of the present invention and a vehicle using the vehicle lamp of the present invention.

[0069] In the description of this invention, references to terms such as "one embodiment," "some embodiments," and "a specific implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0072] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A roller-type light-shielding structure, characterized in that, The device includes a roller (1), a roller seat (2), and a mounting plate (3). At least one light-shielding element (11) is provided on the outer circumferential surface of the roller (1). The light-shielding element (11) is provided with a cut-off line forming structure. The roller (1) is rotatably mounted on the roller seat (2). The roller seat (2) is mounted on the mounting plate (3) and can move along the axial direction of the roller (1) on the mounting plate (3). A rotating shaft (12) is provided on the roller (1) and is mounted on the roller seat (2) through the rotating shaft (12). The device also includes a moving drive mechanism (4). The moving drive mechanism (4) is provided on the mounting plate (3) and can drive the roller seat (2) to move on the mounting plate (3). There are multiple rollers (1), and the multiple rollers (1) are axially connected to each other so that the multiple rollers (1) can rotate synchronously under the drive of the same drive motor. The rotating shafts (12) between two adjacent rollers (1) are connected to each other through a universal joint structure (15). The outer surface of the light-shielding component (11) is an arc surface. The cross section of the circumferential surface of the arc surface and the cross section of the circumferential surface of the roller (1) are concentric circles. The central angle corresponding to the width of the arc surface is 2°-10°.

2. The roller light-shielding structure according to claim 1, characterized in that, A drive gear (13) is provided on the shaft (12) at one end of the roller (1), and a roller drive component (14) is provided on the roller seat (2). The roller drive component (14) is provided with a thread that meshes with the drive gear (13).

3. The roller light-shielding structure according to claim 1, characterized in that, The moving drive mechanism (4) includes a threaded rod (41), a threaded rod drive gear (42), and a threaded rod drive component (43). A drive rack (21) is provided on the roller seat (2). The threaded rod (41) is provided with a thread that cooperates with the drive rack (21). The threaded rod drive gear (42) is fixed on the threaded rod (41). The threaded rod drive component (43) is provided with a thread that cooperates with the threaded rod drive gear (42) so as to drive the threaded rod drive gear (42) to rotate, thereby driving the threaded rod (41) to rotate.

4. The roller light-shielding structure according to claim 1, characterized in that, The outer surface of the light-shielding member (11) includes a first cut surface (111), a second cut surface (112), and a transition cut surface (113). The first cut surface (111) protrudes from the outer peripheral surface of the roller, and the distance between the first cut surface (111) and the rotation center line of the roller (1) is greater than the distance between the second cut surface (112) and the rotation center line of the roller (1). The transition cut surface (113) connects the first cut surface (111) and the second cut surface (112). The first cut surface (111), the second cut surface (112), and the transition cut surface (113) together form the cutoff line forming structure.

5. The roller light-shielding structure according to claim 4, characterized in that, The first cutting surface (111) and the second cutting surface (112) are arranged parallel to the rotation center line of the roller (1).

6. The roller light-shielding structure according to claim 4, characterized in that, The second cutting surface (112) is located on the left side of the roller (1) in the axial direction, and the first cutting surface (111) is located on the right side of the roller (1) in the axial direction, so as to form a left-hand drive cut-off line forming structure; or, the first cutting surface (111) is located on the left side of the roller (1) in the axial direction, and the second cutting surface (112) is located on the right side of the roller (1) in the axial direction, so as to form a right-hand drive cut-off line forming structure.

7. The roller light-shielding structure according to claim 1, characterized in that, Multiple light-shielding members (11) are provided, and the multiple light-shielding members (11) are spaced apart along the circumference of the roller (1), and the cut-off lines formed on the multiple light-shielding members (11) have different structures.

8. The roller light-shielding structure according to claim 7, characterized in that, The cut-off line forming structures on the plurality of light-shielding members (11) include an ECE left-hand drive cut-off line forming structure, an ECE right-hand drive cut-off line forming structure and an SAE cut-off line forming structure.

9. A vehicle headlight module, characterized in that, It includes a light source (5) arranged sequentially along the light-emitting direction, a primary optical element (6), a roller light-shielding structure according to any one of claims 1 to 8, and a lens (7).

10. The vehicle headlight module according to claim 9, characterized in that, The light source (5) is provided in multiple ways. The primary optical element (6) is a condenser. The condenser includes multiple light-incident structures (61) and multiple light-outcident structures (62). The roller light-shielding structure includes multiple rollers (1). Each light source (5) corresponds to one light-incident structure (61), one light-outcident structure (62), and one roller (1).

11. A vehicle light, characterized in that, Includes the vehicle lighting module according to claim 9 or 10.

12. A vehicle, characterized in that, Including the vehicle lights according to claim 11.

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