Vehicle lighting modules, vehicle lighting devices and vehicles

Abstract

This application provides a vehicle lighting module, a vehicle lighting device, and a vehicle, relating to the field of vehicle lighting technology, which can improve the heat dissipation effect of the vehicle lighting module. The vehicle lighting module is used to illuminate the road and includes an outer lens, a high beam light-emitting module, a low beam light-emitting module, and a heat sink. The high beam light-emitting module includes a high beam light-emitting element and a collimating element. The high beam light-emitting element faces the outer lens along its thickness direction. The collimating element is positioned corresponding to the high beam light-emitting element. The low beam light-emitting module includes a low beam light-emitting element and a focusing element. The low beam light-emitting element and the high beam light-emitting element are arranged side-by-side. The focusing element includes at least two reflective surfaces arranged sequentially opposite each other. Of the at least two reflective surfaces, one is opposite to the low beam light-emitting element, and the other is opposite to the outer lens. At least one reflective surface includes a cutoff portion, and the light projected from the cutoff portion forms a low beam cutoff line. The heat sink is located on the backlight side of the high beam light-emitting element and the low beam light-emitting element and is connected to the high beam light-emitting element and the low beam light-emitting element.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to an automotive lighting module, automotive lighting device and vehicle. Background Technology

[0002] Vehicle headlight modules are used to illuminate roads. Dual-beam lighting modules, also known as integrated high and low beam lighting modules, can produce both low beam and high beam patterns. Compared to solutions that combine multiple single-beam lighting modules, dual-beam lighting modules have advantages such as functional integration, small size, and light weight. However, the heat dissipation of dual-beam lighting modules in related technologies is poor, affecting the lighting quality. Utility Model Content

[0003] This application provides a vehicle lighting module, a vehicle lighting device, and a vehicle, which can improve the heat dissipation effect of the vehicle lighting module.

[0004] In a first aspect, this application provides a vehicle lighting module, which includes an outer lens, a high beam lighting module, a low beam lighting module, and a heat sink. The high beam lighting module includes a high beam emitting element and a collimating element. The high beam emitting element faces the outer lens along its thickness direction. The collimating element is positioned corresponding to the high beam emitting element. The low beam lighting module is located on one side of the outer lens along its thickness direction and includes a low beam emitting element and a focusing element. The low beam emitting element and the high beam emitting element are arranged side-by-side. The focusing element includes at least two sequentially opposite reflective surfaces. Of the at least two reflective surfaces, one is opposite to the low beam emitting element, and the other is opposite to the outer lens. At least one reflective surface includes a cutoff portion, and the light projected from the cutoff portion forms a low beam cutoff line. The heat sink is located on the backlight side of the high beam emitting element and the low beam emitting element and is connected to them.

[0005] By aligning the high beam emitter with the outer lens along its thickness direction, and placing the low beam emitter alongside it (i.e., both the high and low beam emitters are horizontally aligned with the outer lens and have the same orientation), and by making them flush along the orientation of the high beam emitter, the high and low beam emitters are distributed along a vertical array opposite the outer lens. This results in the heat sink surface near the high and low beam emitters also being roughly vertical. After absorbing heat, the heat can diffuse smoothly in all directions along the vertical array, especially upwards. During diffusion, the heat is less likely to be blocked by the high and low beam modules, thus preventing reabsorption by the high and low beam modules. Consequently, the heat can be quickly released into the external environment. Therefore, the heat generated by the high and low beam modules in the vehicle lighting module provided in this application can be quickly released into the external environment, resulting in good heat dissipation.

[0006] Furthermore, the surface of the radiator near the high beam and low beam light-emitting components is roughly plumb-shaped, making the radiator's shape relatively flat with fewer bends on the outer surface. This makes the radiator easier to manufacture, reduces stress concentration, and minimizes airflow obstruction, thus improving its heat dissipation effect.

[0007] Furthermore, by including a cut-off portion in at least one reflective surface, the light projected by the cut-off portion forms a low beam cut-off line, eliminating the need for a light-blocking plate to form the low beam cut-off line in the headlight module. This simplifies the structure, improves light utilization, and makes the low beam cut-off line less prone to dispersion. The junction between the light pattern formed by the low beam light-emitting module and the light pattern formed by the high beam light-emitting module is less likely to have obvious dark lines, resulting in better quality high beam light pattern.

[0008] Furthermore, by placing the collimator at the high beam emitter, the light emitted by the high beam emitter can be collimated into first parallel light by the collimator. The direction of the first parallel light is the same as the orientation of the high beam emitter. That is, the light emitted by the high beam emitter is parallel light. In this way, the position of the high beam emitter along its own orientation is less restricted. Changes in the position of the high beam emitter along its own orientation will not cause significant changes in the light emitted by the high beam emitter after passing through the outer lens. Parallel light always passes through the outer lens. This makes it easier to adjust the high beam emitter to a position flush with the low beam emitter, and the arrangement of the high beam emitter is relatively simple.

[0009] In some possible implementations of this application, the collimator includes a reflector cup, the cup wall of which surrounds the high beam light emitter. The reflector cup is configured to reflect the light emitted by the high beam light emitter into a first parallel light, the direction of which is the same as the orientation of the high beam light emitter.

[0010] The smaller size and weight of the reflector cup, by including the reflector cup in the collimator, which is configured to reflect the light emitted by the high beam light source into a first parallel light, facilitates a smaller size and weight of the collimator, thereby facilitating a smaller size and weight of the vehicle headlight lighting module.

[0011] In some possible implementations of this application, the outer lens includes a focusing lens section. The vehicle headlight illumination module also includes a diverging lens, which is disposed opposite to the focusing lens section along the orientation of the high beam emitter, and is positioned between the output end of the collimator and the focusing lens section. The focal line of the focusing lens section coincides with the virtual focal line of the diverging lens, or the focal point of the focusing lens section coincides with the virtual focal point of the diverging lens.

[0012] By positioning the diverging lens between the output end of the collimator and the focusing lens, the first parallel light emitted from the collimator can pass sequentially through the diverging lens and the focusing lens. The first parallel light first diverges through the diverging lens and then converges through the focusing lens. By aligning the focal line of the focusing lens with the virtual focal line of the diverging lens, or the focal point of the focusing lens with the virtual focal point of the diverging lens, the first parallel light remains parallel after passing through both the diverging and focusing lenses. The area of ​​the spot of the parallel light emitted from the focusing lens is larger than that of the first parallel light, which helps to improve the illumination range of the high beam.

[0013] It should be clarified that the coincidence of the focal line of the focusing lens and the virtual focal line of the diverging lens means that the focal line of the focusing lens near the high beam emitter coincides with the focal line of the diverging lens near the high beam emitter. Similarly, the coincidence of the focal point of the focusing lens and the virtual focal point of the diverging lens means that the focal point of the focusing lens near the high beam emitter coincides with the focal point of the diverging lens near the high beam emitter.

[0014] The cylindrical lens is relatively thin, which makes it easier to injection mold. In the embodiments of this application, the diverging lens and the focusing lens collimate the light emitted by the collimator into a first parallel light. The diverging lens and the focusing lens can be injection molded more easily, thereby making the processing and manufacturing of the vehicle lighting module more convenient.

[0015] In some possible implementations of this application, at least two reflective surfaces include a first reflective surface and a second reflective surface. The first reflective surface is disposed opposite to the low beam emitting element, and the second reflective surface is disposed opposite to the first reflective surface. The direction in which they are disposed opposite to each other is perpendicular to the orientation of the low beam emitting element. Along the orientation of the low beam emitting element, the second reflective surface is disposed opposite to the outer lens.

[0016] In this way, the low beam light source can reach the outer lens after being reflected twice by the first and second reflecting surfaces. The number of reflecting surfaces is small, which helps to reduce the size of the light-gathering component and thus the size of the vehicle headlight lighting module.

[0017] In some possible implementations of this application, the outer lens includes an outer cylindrical lens portion. The vehicle lighting module also includes an inner cylindrical lens, which is disposed opposite to the outer cylindrical lens portion. The inner cylindrical lens is located between the outer cylindrical lens portion and the light-collecting member. The focal line of the inner cylindrical lens intersects the focal line of the outer cylindrical lens portion, and the intersection point is located on the side of the second reflecting surface away from the inner cylindrical lens. The light emitted by the light-collecting member is collimated into a second parallel light by the inner cylindrical lens and the outer cylindrical lens portion.

[0018] Compared to spherical lenses, cylindrical lenses are thinner and have less focusing effect on sunlight. By collimating the light emitted from the condenser into a second parallel beam through the inner and outer cylindrical lenses, compared to collimating the light emitted from the condenser through a spherical lens, it is beneficial to reduce the size of the vehicle lighting module and the temperature rise inside the lighting device. This eliminates the need for heat insulation sheets within the lighting device, thus reducing costs and weight. Furthermore, compared to the distance between the focal point of a spherical lens and its own focal point, the distance between the focal lines of a cylindrical lens is larger. The second reflecting surface is located between the focal lines of the inner and outer cylindrical lenses, and the larger distance between the focal lines of the inner and outer cylindrical lenses facilitates the arrangement of the condenser.

[0019] Furthermore, the cylindrical lens is relatively thin, which makes it easier to injection mold the cylindrical lens. In the embodiments of this application, the inner positive cylindrical lens and the outer positive cylindrical lens collimate the light emitted by the light-concentrating element into a second parallel light. The inner positive cylindrical lens and the outer positive cylindrical lens can be injection molded more easily, thereby making the processing and manufacturing of the vehicle lighting module more convenient.

[0020] It should be explained that the inner cylindrical lens is located between the outer cylindrical lens and the condenser. This means that the inner cylindrical lens is located between the outer cylindrical lens and the condenser in the direction in which the inner cylindrical lens and the outer cylindrical lens are arranged opposite each other, that is, along the length of the vehicle.

[0021] It should be explained that the intersection of the focal line of the inner cylindrical lens and the focal line of the outer cylindrical lens means that the focal line of the inner cylindrical lens near the low light emission line intersects with the focal line of the outer cylindrical lens near the low light emission element.

[0022] In some possible implementations of this application, the optical system consisting of the outer positive cylindrical lens, the inner positive cylindrical lens, and the second reflecting surface has an equivalent focal point, which is located on the first reflecting surface. The near-light emitting element and the cutoff part are both disposed at the equivalent focal point.

[0023] By placing the equivalent focal point at the first reflecting surface and positioning the low beam emitter at the equivalent focal point, more light emitted by the low beam emitter is reflected from the first reflecting surface to the second reflecting surface, and then converted into parallel light by the outer cylindrical lens, the inner cylindrical lens, and the second reflecting surface, which helps to improve the road-paving effect of the low beam pattern. By placing all the cut-off portions at the equivalent focal point, the low beam cut-off line is clearer. It can be understood that, compared to placing the intersection of the focal line of the inner cylindrical lens and the focal line of the outer cylindrical lens at the second reflecting surface, in this application, the distance between the condenser and the outer cylindrical lens is smaller, which helps to reduce the size of the vehicle lighting module along the length of the vehicle.

[0024] In some embodiments of this application, the first reflective surface is curved, bending away from the second reflective surface. The first reflective surface is close to the near-light emitting element, and its curved shape allows for better light collection. In some embodiments of this application, the second reflective surface is planar, which facilitates its manufacturing.

[0025] In some possible implementations of this application, the outer lens includes a focusing lens portion and an outer positive cylindrical lens portion. The focal line of the focusing lens portion is parallel to the focal line of the outer positive cylindrical lens portion and is perpendicular to the vertical direction. The focusing lens portion and the outer positive cylindrical lens portion are arranged side by side along the vertical direction. The high beam emission module is positioned opposite to the focusing lens portion, and the low beam emission module is positioned opposite to the outer positive cylindrical lens portion.

[0026] Vehicle headlights tend to have a larger horizontal length but a smaller vertical length. By aligning the focal line of the focusing lens with the focal line of the outer cylindrical lens, both perpendicular to the vertical direction, the horizontal length of both the focusing lens and the outer cylindrical lens is increased while their vertical length decreases. This results in a higher degree of shape matching between the focusing lens and the outer cylindrical lens and the headlight shape, facilitating their arrangement. Furthermore, by arranging the focusing lens and the outer cylindrical lens side-by-side vertically, the length of the outer lens in both the width and height directions of the vehicle is moderate, which improves the length and rigidity of the outer lens. It is understood that in the embodiments of this application, the extension directions of the focal line of both the focusing lens and the outer cylindrical lens are in the width direction of the vehicle.

[0027] In some possible implementations of this application, the focusing lens is located above the outer cylindrical lens. This allows the light emitted by the high-beam emitter to exit from the upper part of the outer lens, which helps to extend the illumination distance and meet the requirements of the high-beam beam pattern.

[0028] In some possible implementations of this application, the vehicle lighting module also includes a circuit board, the thickness direction of which is parallel to the orientation of the high beam light source, the high beam light source and the low beam light source are disposed on the same circuit board, and the heat sink is connected to the circuit board.

[0029] By placing the high beam and low beam light-emitting components on the same circuit board, the number of circuit boards can be reduced, as can the number of connectors and cables connected to the circuit board. This improves the reliability of electrical connections, reduces the size of the vehicle lighting module, increases assembly density, and also reduces assembly difficulty and cost. It is understood that in this application, the heat sink and circuit board are arranged along the thickness direction of the circuit board, i.e., the length direction of the vehicle, with the heat sink located on the side of the circuit board closer to the rear of the vehicle.

[0030] Secondly, this application provides a vehicle lighting device, which includes the vehicle lighting module provided in the first aspect of this application.

[0031] The vehicle provided in this application, including the headlight lighting module provided in the first aspect of this application, can achieve the same effect, namely, improve the heat dissipation effect of the headlight lighting module.

[0032] Thirdly, this application provides a vehicle that includes the lighting device provided in the second aspect of this application.

[0033] The vehicle provided in this application, including the vehicle lighting device provided in the second aspect of this application, can achieve the same effect, namely, it can improve the heat dissipation effect of the vehicle lighting module. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a vehicle lighting module in some embodiments of this application; Figure 2 This is an exploded view of a vehicle lighting module in some embodiments of this application; Figure 3 This is a cross-sectional view of a vehicle lighting module in some embodiments of this application; Figure 4 These are near-beam beam patterns from some embodiments of this application; Figure 5 This is a light pattern formed by the high beam light-emitting module in some embodiments of this application; Figure 6 These are high beam pattern diagrams from some embodiments of this application; Figure 7 It is a near-beam optical pattern diagram in related technologies; Figure 8 It is a high-beam beam pattern diagram in related technologies; Figure 9 This is a schematic diagram of the propagation path of light emitted by the vehicle headlight illumination module in some embodiments of this application; Figure 10 This is one of the positional relationship diagrams of the high beam light-emitting module and the outer lens in some embodiments of this application; Figure 11 This is the second of several embodiments of the present application showing the positional relationship between the high beam light-emitting module and the outer lens. Figure 12 This is one of the positional relationship diagrams of the near beam emission module and the outer lens in some embodiments of this application; Figure 13 This is the second of several embodiments of the present application showing the positional relationship between the low beam light-emitting module and the outer lens.

[0036] Explanation of reference numerals in the attached drawings: 1. Outer lens; 11. Focusing lens section; 12. Outer positive cylindrical lens section; 2. High beam light-emitting module; 21. High beam light-emitting element; 22. Collimating element; 3. Low beam light-emitting module; 31. Low beam light-emitting element; 32. Condenser element; 321. First reflecting surface; 3211. Cut-off section; 322. Second reflecting surface; 4. Heat sink; 5. Bracket; 6. Diverging lens; 7. Inner positive cylindrical lens; 8. Circuit board. Detailed Implementation

[0037] The technical solutions in this application will now be described clearly and in detail with reference to the accompanying drawings.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0042] This application provides a vehicle, such as a sedan, SUV, or sport utility vehicle (SUV).

[0043] The vehicle provided in this application embodiment includes a vehicle lighting device, which includes a vehicle lighting module. The vehicle lighting module refers to the core unit inside the vehicle lighting device that realizes optical functions, and is responsible for the generation, control and projection of light, as well as heat dissipation. In addition to the vehicle lighting module, the vehicle lighting device generally also includes a lamp cover and a lamp housing, which form a receiving space, and the vehicle lighting module is disposed within the receiving space.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a structural schematic diagram of a vehicle lighting module in some embodiments of this application. Figure 2 This is an exploded view of a vehicle lighting module in some embodiments of this application. Figure 3 This is a cross-sectional view of a vehicle lighting module in some embodiments of this application. The vehicle lighting module provided in the embodiments of this application includes an outer lens 1, a high beam light-emitting module 2, a low beam light-emitting module 3, and a heat sink 4. The high beam light-emitting module 2 includes a high beam light-emitting element 21 and a collimator 22. The high beam light-emitting element 21 faces the outer lens 1 along the thickness direction of the outer lens 1. The collimator 22 is set corresponding to the high beam light-emitting element 21. The low beam light-emitting module 3 is located on one side of the outer lens 1 along the thickness direction and includes a low beam light-emitting element 31 and a focusing element 32. The low beam light-emitting element 31 is arranged side by side with the high beam light-emitting element 21. The focusing element 32 includes at least two reflective surfaces arranged opposite each other in sequence. One of the at least two reflective surfaces is arranged opposite to the low beam light-emitting element 31, and the other is arranged opposite to the outer lens 1. At least one reflective surface includes a cutoff portion 3211. The light projected by the cutoff portion 3211 forms a low beam cutoff line. The heat sink 4 is set on the backlight side of the high beam light-emitting element 21 and the low beam light-emitting element 31 and is connected to the high beam light-emitting element 21 and the low beam light-emitting element 31.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3In this embodiment, the high beam light-emitting element 21 is oriented towards the outer lens 1 along its thickness direction, and the low beam light-emitting element 31 is arranged side-by-side with the high beam light-emitting element 21. That is, both the high beam light-emitting element 21 and the low beam light-emitting element 31 are oriented horizontally towards the outer lens 1 with the same orientation. Along the orientation of the high beam light-emitting element 21, the high beam light-emitting element 21 and the low beam light-emitting element 31 are aligned, resulting in the high beam light-emitting element 21 and the low beam light-emitting element 31 being distributed along a plumb line array opposite to the outer lens 1. This ensures that the surface of the heat sink 4 on the side closest to the high beam light-emitting element 21 and the low beam light-emitting element 31 is also approximately... The heat sink 4 has a plumb surface. After absorbing heat, the heat can spread smoothly in all directions along the plumb surface, especially upwards in the vertical direction z. During the diffusion process, it is not easily blocked by the high beam module 2 and the low beam module 3, so it can be absorbed again by the high beam module 2 and the low beam module 3. In this way, the heat can be quickly released into the external environment. Therefore, the heat generated by the high beam module 2 and the low beam module 3 in the vehicle lighting module provided in this application can be quickly released into the external environment of the vehicle lighting module, and the heat dissipation effect of the vehicle lighting module is good.

[0046] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the surface of the heat sink 4 near the high beam light-emitting element 21 and the low beam light-emitting element 31 is also roughly a plumb surface, which makes the shape of the heat sink 4 relatively flat and the bending of the outer surface relatively small. This makes the heat sink 4 easier to process and manufacture, reduces stress concentration in the heat sink 4, reduces the obstruction encountered by the airflow through the heat sink 4, and improves the heat dissipation effect of the heat sink 4.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment of the application, by including at least one reflective surface with a cutoff portion 3211, the light projected by the cutoff portion 3211 forms a low beam cutoff line, so that the vehicle headlight lighting module does not need to include a light-blocking plate for forming the low beam cutoff line, which is beneficial to simplify the structure, improve light utilization, and the low beam cutoff line is less prone to dispersion. The junction of the light pattern formed by the low beam light-emitting module 3 and the light pattern formed by the high beam light-emitting module 2 is less prone to obvious dark lines, resulting in better quality of the high beam light pattern.

[0048] In some embodiments of this application, the light pattern reference formed by the high beam light-emitting module 2 Figure 4 The light pattern reference formed by the near beam emission module 3 Figure 5 The low beam pattern is formed by the low beam light-emitting module 3. The low beam pattern is superimposed with the light pattern formed by the high beam light-emitting module 2 to form the high beam pattern. The high beam pattern is referenced. Figure 6It can be observed that no obvious dark line appears at the junction of the light pattern formed by the high beam emission module 2 and the low beam. In related technologies, referencing... Figure 7 , Figure 7 For near-beam beam pattern diagrams in related technologies, refer to Figure 8 , Figure 8 The diagram shows the high beam pattern in the relevant technology. It can be seen that there is a clear dark line at the junction of the light pattern formed by the low beam light-emitting module 3 and the light pattern formed by the high beam light-emitting module 2.

[0049] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, by placing the collimator 22 at the high beam emitting element 21, the light emitted by the high beam emitting element 21 can be collimated by the collimator 22 into first parallel light. The direction of the first parallel light is the same as the orientation of the high beam emitting element 21. That is, the light emitted by the high beam emitting module 2 is parallel light. In this way, the position of the high beam emitting module 2 along its own orientation is less restricted. The change in the position of the high beam emitting module 2 along its own orientation will not cause a large change in the light emitted by the high beam emitting module 2 after passing through the outer lens. It is always parallel light passing through the outer lens 1. This makes it easier to adjust the high beam emitting element 21 to be aligned with the low beam emitting element 31. The arrangement of the high beam emitting element 21 is relatively easy.

[0050] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the heat sink 4 can be implemented in various forms. For example, it can be an extruded aluminum heat sink, a forged aluminum heat sink, a stamped plate heat sink, a machined fin heat sink, or a die-cast aluminum heat sink. Generally, extruded aluminum heat sinks and forged aluminum heat sinks have lower costs and better heat dissipation effects, but due to process limitations, their shape needs to be relatively simple. In this embodiment, the surface of the heat sink 4 near the high beam light-emitting element 21 and the low beam light-emitting element 31 is also roughly a plumb line, with a relatively simple shape. This allows the heat sink 4 in this embodiment to be easily manufactured by extruded aluminum or forged aluminum processes. That is, extruded aluminum heat sinks and forged aluminum heat sinks can be easily applied to the vehicle lighting module of this embodiment, which is beneficial to improving the heat dissipation effect of the vehicle lighting module.

[0051] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the vehicle lighting device also includes a fan configured to drive airflow through the radiator 4. This helps to improve the heat dissipation effect of the vehicle lighting device.

[0052] Please refer to Figure 1 , Figure 2 and Figure 3In some embodiments of this application, the low beam light-emitting element 31 can be a light-emitting diode or a halogen lamp, and the high beam light-emitting element 21 can be a light-emitting diode or a halogen lamp, etc.

[0053] Please refer to Figure 1 , Figure 2 and Figure 3 It should be explained that, in this embodiment of the application, the high beam light-emitting element 21 faces the outer lens 1 along the thickness direction of the outer lens 1, that is, the light-emitting surface of the high beam light-emitting element 21 is arranged opposite to the outer lens 1 along the thickness direction of the outer lens 1, and the high beam light-emitting element 21 emits light towards the outer lens 1.

[0054] Please refer to Figure 1 , Figure 2 and Figure 3 It should be noted that in this embodiment, the outer lens 1 is a one-piece molded structure. The low beam emission module 3 and the high beam emission module 2 share the same outer lens 1, which is beneficial to improving the quality of the high beam.

[0055] Please refer to Figure 1 , Figure 2 and Figure 3 It should be explained that, in the embodiments of this application, the near light emitting element 31 faces the outer lens 1 along the thickness direction of the outer lens 1, that is, the light emitting surface of the near light emitting element 31 is arranged opposite to the outer lens 1 along the thickness direction of the outer lens 1, and the near light emitting element 31 emits light towards the outer lens 1.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment of the application, the outer lens 1 is arranged opposite to the lamp cover. Along the thickness direction of the outer lens 1, the low beam light-emitting module 3 and the high beam light-emitting module 2 are both located on the side of the outer lens 1 away from the lamp cover. When the vehicle lighting module is installed on the vehicle body, the thickness direction of the outer lens 1 is the length direction x of the vehicle, and the length direction x of the vehicle is perpendicular to the vertical direction z.

[0057] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment, a reflective surface is disposed opposite to the near-beam emitting element 31, that is, the near-beam emitting element 31 faces the emitting surface along the thickness direction of the outer lens 1. The focusing element 32 includes at least two reflective surfaces disposed opposite to each other in sequence, so that the light emitted by the near-beam emitting element 31 can be reflected sequentially by at least two reflective surfaces to the outer lens 1.

[0058] Please refer to Figure 1 , Figure 2 and Figure 3It should be explained that, in this embodiment of the application, the heat sink 4 is disposed on the backlight side of the high beam light-emitting element 21 and the low beam light-emitting element 31, that is, the heat sink 4 is disposed on the side of the high beam light-emitting element 21 and the low beam light-emitting element 31 away from the outer lens 1.

[0059] Please refer to Figure 1 , Figure 2 and Figure 3 It should be explained that in this embodiment, the collimator 22 is provided corresponding to the high beam light emitter 21. That is, the collimator 22 can collimate the light emitted by the high beam light emitter 21 into a first parallel light. The first parallel light is directed toward the outer lens 1, and the direction of the first parallel light is the same as the direction of the high beam light emitter 21.

[0060] Please refer to Figure 2 , Figure 3 and Figure 9 , Figure 9 This is a schematic diagram illustrating the propagation path of light emitted by a vehicle headlight illumination module in some embodiments of this application. In some embodiments of this application, the collimator 22 includes a reflector cup, the wall of which surrounds the high beam emitter 21. The reflector cup is configured to reflect the light emitted by the high beam emitter 21 into a first parallel light, the direction of which is the same as the orientation of the high beam emitter 21. The reflector cup is small in size and weight, its dimensions including those along the length x of the vehicle, the width y of the vehicle, and the vertical z. By including a reflector cup in the collimator 22 and configuring it to reflect the light emitted by the high beam emitter 21 into the first parallel light, it is advantageous to reduce the size and weight of the collimator 22, thereby contributing to a smaller size and weight for the vehicle headlight illumination module.

[0061] Please refer to Figure 2 , Figure 3 and Figure 9 In some embodiments of this application, the distance between the high beam emitting element 21 and the outer lens 1 along the length x of the vehicle is 30 mm to 60 mm, for example, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm or 58 mm.

[0062] Please refer to Figure 2 , Figure 3 and Figure 9 The reflective cup in this embodiment has the same meaning as commonly understood by those skilled in the art. Generally, the reflective cup is sleeved on the high beam emitting element 21, the high beam emitting element 21 is located at the bottom of the reflective cup, the orientation of the cup opening of the reflective cup is the same as the orientation of the high beam emitting element 21, and the central axis of the reflective cup passes through the emitting center of the high beam emitting element 21.

[0063] Please refer to Figure 2In some other embodiments of this application, the collimator 22 includes a third reflective surface and a fourth reflective surface. The high beam emitting element 21 is oriented toward the third reflective surface along the length x of the vehicle. The third reflective surface and the fourth reflective surface are arranged opposite each other along a direction perpendicular to the length x of the vehicle, such as the vertical direction z. The fourth reflective surface is arranged opposite to the outer lens 1 along the length x of the vehicle. The third reflective surface is configured to collimate the light emitted by the high beam emitting element 21 into parallel light toward the fourth reflective surface. The fourth reflective surface is configured to reflect the parallel light reflected by the third reflective surface to the outer lens 1.

[0064] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the vehicle lighting module further includes a bracket 5, which is formed with a mounting cavity having an opening. The outer lens 1 mates with the opening, and the collimator 22 and the focusing element 32 can both be disposed within the mounting cavity. The bracket 5 can be fixedly connected to the lamp holder. This makes the installation of the collimator 22, the focusing element 32, and the outer lens 1 within the lamp housing more stable, which helps to ensure the relative position of the collimator 22, the focusing element 32, and the outer lens 1.

[0065] Please refer to Figure 9 , Figure 10 and Figure 11 , Figure 10 This is one of the positional relationship diagrams between the high beam light-emitting module and the outer lens in some embodiments of this application. Figure 11 This is the second of several embodiments of the high beam emission module and the outer lens in this application. In some embodiments of this application, the outer lens 1 includes a focusing lens section 11. The vehicle headlight illumination module also includes a diverging lens 6. Along the orientation of the high beam emission element 21, the diverging lens 6 is disposed opposite to the focusing lens section 11, and is located between the output end of the collimator 22 and the focusing lens section 11. The focal line of the focusing lens section 11 coincides with the virtual focal line of the diverging lens 6, or the focal point of the focusing lens section 11 coincides with the virtual focal point of the diverging lens 6.

[0066] Please refer to Figure 9 , Figure 10 and Figure 11In this embodiment, by placing the diverging lens 6 between the output end of the collimator 22 and the focusing lens 11, the first parallel light emitted from the collimator 22 can pass through the diverging lens 6 and the focusing lens 11 sequentially. The first parallel light first diverges through the diverging lens 6 and then converges through the focusing lens 11. By aligning the focal line of the focusing lens 11 with the virtual focal line of the diverging lens 6, or aligning the focal point of the focusing lens 11 with the virtual focal point of the diverging lens 6, the first parallel light remains parallel after passing through the diverging lens 6 and the focusing lens 11. The area of ​​the spot of the parallel light emitted from the focusing lens 11 is increased relative to the area of ​​the spot of the first parallel light, which is beneficial for improving the illumination range of the high beam pattern.

[0067] Please refer to Figure 9 , Figure 10 and Figure 11 It should be explained that, in the embodiments of this application, the diverging lens 6 is disposed between the output end of the collimator 22 and the focusing lens 11, which means that along the orientation of the far-beam emitting element 21, the diverging lens 6 is disposed between the output end of the collimator 22 and the focusing lens 11, and the first parallel light passes through the diverging lens 6 and arrives at the focusing lens 11.

[0068] Please refer to Figure 9 , Figure 10 and Figure 11 It should be explained that, in this embodiment, the focusing lens 11 is used to converge light rays, and the diverging lens 6 is used to diverge light rays. Parallel light remains parallel after passing through the diverging lens 6 and the focusing lens 11 in sequence.

[0069] Please refer to Figure 9 , Figure 10 and Figure 11 It is understood that in the embodiments of this application, when the focal line of the focusing lens 11 coincides with the virtual focal line of the diverging lens 6, both the focusing lens 11 and the diverging lens 6 are cylindrical lenses, the focal point of the focusing lens 11 coincides with the virtual focal point of the diverging lens 6, and both the focusing lens 11 and the diverging lens 6 are spherical lenses.

[0070] Please refer to Figure 9 , Figure 10 and Figure 11 The cylindrical lens is relatively thin, which makes it easier to injection mold the cylindrical lens. In the embodiment of this application, the diverging lens 6 and the focusing lens 11 collimate the light emitted by the collimator 22 into a first parallel light. The diverging lens 6 and the focusing lens 11 can be injection molded more easily, which makes the processing and manufacturing of the vehicle lighting module more convenient.

[0071] Please refer to Figure 9 , Figure 10 and Figure 11A cylindrical lens is an optical element with a cylindrical surface, characterized by curvature in a single dimension and zero curvature in the vertical direction, thereby achieving asymmetric control of light. A cylindrical lens bends light in only one direction. For the focusing lens section 11, which is constructed as a cylindrical lens, a parallel beam of light, after incident, is focused into a focal line in the curvature direction, unlike the focal point of an aspherical lens. In the direction without curvature, it continues to propagate parallel to the ground. For the diverging lens 6, which is constructed as a cylindrical lens, the parallel beam of light diverges in the curvature direction, resulting in a negative focal length, with the backward extension intersecting the imaginary focal line. It is understood that, in this embodiment, the focal line of the focusing lens section 11 is perpendicular to the vehicle's length direction (x).

[0072] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, the outer lens 1 can be made of polycarbonate (PC) or polymethyl methacrylate (PMMA). Polycarbonate and polymethyl methacrylate can be easily injection molded into various shapes and have good light transmittance, making the outer lens 1 easy to process and manufacture, with low cost and good light transmittance.

[0073] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, the thickness of the focusing lens portion 11 can be 5 to 11 millimeters, for example, 6 millimeters, 7 millimeters, 8 millimeters, 9 millimeters or 10 millimeters.

[0074] Please refer to Figure 9 , Figure 10 and Figure 11 It should be explained that, in the embodiments of this application, the thickness of the focusing lens portion 11 refers to the thickness of the part of the focusing lens portion 11 with the largest thickness, that is, the distance of the focusing lens portion 11 from one side surface to the other side surface along its own main axis.

[0075] Please refer to Figure 9 , Figure 10 and Figure 11 It should be explained that, in this embodiment, the focal line of the focusing lens 11 coinciding with the virtual focal line of the diverging lens 6 means that the focal line of the focusing lens 11 near the high beam emitting element 21 coincides with the focal line of the diverging lens 6 near the high beam emitting element 21. Similarly, the focal point of the focusing lens 11 coinciding with the virtual focal point of the diverging lens 6 means that the focal point of the focusing lens 11 near the high beam emitting element 21 coincides with the focal point of the diverging lens 6 near the high beam emitting element 21.

[0076] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, the central axis of the collimator 22, such as the central axis of the reflector cup, is perpendicular to the focal line of the focusing lens section 11. In some embodiments of this application, the focal point of the focusing lens section 11 is located at the central axis of the collimator 22, such as the central axis of the reflector cup. This is beneficial for increasing the light throughput through the focusing lens section 11, thereby improving the brightness of the high beam pattern.

[0077] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, at least a portion of the diverging lens 6 is disposed within the reflector cup. This fully utilizes the space within the reflector cup, reducing the space required to arrange the diverging lens 6 and the reflector cup. Furthermore, the reflector cup protects the diverging lens 6, improving its reliability. Additionally, when light emitted from the light-emitting element enters the diverging lens 6 at an angle to the central axis of the reflector cup, it is refracted by the surface of the diverging lens 6 near the high-beam light-emitting element 21, causing the light to refract away from the central axis of the reflector cup. This increases the angle between the light and the cup wall, making it easier for the light to reach the cup wall, resulting in more light reflected from the cup wall. This collimation of more light improves the collimation effect of the reflector cup.

[0078] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, the number of high beam light-emitting modules 2 is at least two. Exemplarily, there can be two, three, four, five, or six, etc., with at least two high beam light-emitting modules 2 arranged side by side. In this way, the light emitted by at least two high beam light-emitting modules 2 can be used together to form the high beam pattern, which is beneficial to improving the luminous flux and illuminance value of the high beam pattern.

[0079] Please refer to Figure 9 , Figure 10 and Figure 11 In some embodiments of this application, the diverging lenses 6 of at least two high-beam light-emitting modules 2 can be integrally formed. This facilitates the processing and manufacturing of the diverging lenses 6.

[0080] Please refer to Figure 9 , Figure 10 and Figure 11In some embodiments of this application, at least two high-beam light-emitting modules 2 are arranged side-by-side in the same direction as the extension direction of the focal line of the focusing lens section 11. The extension direction of the focal line of the focusing lens section 11 is, for example, the vertical direction z or the width direction y of the vehicle. In this way, the length of the focusing lens section 11 along its own focal line extension direction is relatively large. By arranging at least two high-beam light-emitting modules 2 side-by-side in the same direction as the extension direction of the focal line of the focusing lens section 11, one focusing lens section 11 can converge the light emitted by at least two high-beam light-emitting modules 2. The focusing lens section 11 is fully utilized, which helps to reduce the number of focusing lens sections 11 and improve the compactness of the structure.

[0081] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 , Figure 12 This is one of the positional relationship diagrams between the low beam light-emitting module and the outer lens in some embodiments of this application. Figure 13 This is the second of the positional relationship diagrams of the low beam light-emitting module and the outer lens in some embodiments of this application. In some embodiments of this application, at least two reflective surfaces include a first reflective surface 321 and a second reflective surface 322. The first reflective surface 321 is disposed opposite to the low beam light-emitting element 31, and the second reflective surface 322 is disposed opposite to the first reflective surface 321. The direction of the relative arrangement is perpendicular to the orientation of the low beam light-emitting element 31. Along the orientation of the low beam light-emitting element 31, the second reflective surface 322 is disposed opposite to the outer lens 1.

[0082] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 The low beam light-emitting element 31 can reach the outer lens 1 after being reflected twice by the first reflective surface 321 and the second reflective surface 322. The number of reflective surfaces is small, which helps to reduce the volume of the light-concentrating element 32, and thus reduce the volume of the vehicle lamp lighting module.

[0083] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the first reflecting surface 321 may be a specular reflecting surface or a total reflecting surface. In some embodiments of this application, the second reflecting surface 322 may be a specular reflecting surface or a total reflecting surface.

[0084] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It is understood that in the embodiments of this application, both the first reflective surface 321 and the second reflective surface 322 have an angle greater than zero degrees and less than 90 degrees with the length direction x of the vehicle.

[0085] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the light-concentrating element 32 is made of a transparent material, and both the first reflective surface 321 and the second reflective surface 322 are total reflective surfaces. The light-concentrating element 32 also includes an incident surface and an emitting surface, which are located on opposite sides of the surface of the light-concentrating element 32 along the length x of the vehicle. Along a direction perpendicular to the length x of the vehicle, the first reflective surface 321 and the second reflective surface 322 are located on opposite sides of the surface of the light-concentrating element 32. The low-beam emitting element 31 faces the incident surface along the length x of the vehicle, and the incident surface is arranged parallel to the emitting surface of the low-beam emitting element 31. The first reflective surface 321 and the second reflective surface 322 are located on the side of the incident surface away from the low-beam emitting element 31, and the emitting surface is located on the side of the first reflective surface 321 and the second reflective surface 322 away from the incident surface. In this way, the incident surface can concentrate the light emitted by the low-beam emitting element 31, and the concentrated light is reflected by the first reflective surface 321 to the second reflective surface 322, which helps to improve the utilization rate of light. Furthermore, by making the light-concentrating element 32 from a transparent material, the cost of the light-concentrating element 32 is lower, and its processing and manufacturing are more convenient. In some embodiments of this application, the light-concentrating element 32 can be injection molded.

[0086] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the outer lens 1 includes an outer cylindrical lens portion 12. The vehicle headlight illumination module also includes an inner cylindrical lens 7, which is disposed opposite to the outer cylindrical lens portion 12. The inner cylindrical lens 7 is located between the outer cylindrical lens portion 12 and the light-concentrating member 32. The focal line of the inner cylindrical lens 7 intersects the focal line of the outer cylindrical lens portion 12, and the intersection point is located on the side of the second reflecting surface 322 away from the inner cylindrical lens 7. The light emitted by the light-concentrating member 32 is collimated into a second parallel light by the inner cylindrical lens 7 and the outer cylindrical lens portion 12.

[0087] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13Compared to spherical lenses, cylindrical lenses are thinner and have less focusing effect on sunlight. By collimating the light emitted by the light-concentrating element 32 into second parallel light through the inner cylindrical lens 7 and the outer cylindrical lens section 12, compared to collimating the light emitted by the light-concentrating element 32 into second parallel light through a spherical lens, it is beneficial to reduce the size of the vehicle lighting module and reduce the temperature rise inside the vehicle lighting device. The vehicle lighting device does not require a heat insulation sheet, which helps to reduce the cost and weight of the vehicle lighting device. Furthermore, compared to the distance between the focal point of a spherical lens and itself, the distance between the focal line of a cylindrical lens and the cylindrical lens is larger. The second reflecting surface 322 is located between the inner cylindrical lens 7 and the focal line of the inner cylindrical lens 7. The larger distance between the focal lines of the inner cylindrical lens 7 and the inner cylindrical lens 7 facilitates the arrangement of the light-concentrating element 32.

[0088] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 Generally, the emission direction of the second parallel light is parallel to the length direction x of the vehicle.

[0089] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 Furthermore, the cylindrical lens is relatively thin, which makes it easier to injection mold the cylindrical lens. In this embodiment, the inner positive cylindrical lens 7 and the outer positive cylindrical lens 12 collimate the light emitted by the focusing member 32 into a second parallel light. The inner positive cylindrical lens 7 and the outer positive cylindrical lens 12 can be injection molded more easily, thereby making the processing and manufacturing of the vehicle lighting module more convenient.

[0090] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It should be explained that, in the embodiments of this application, both the inner cylindrical lens 7 and the outer cylindrical lens 12 are used to converge light.

[0091] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the outer lens 1 can be made of polycarbonate (PC) or polymethyl methacrylate (PMMA). Polycarbonate and polymethyl methacrylate can be easily injection molded into various shapes and have good light transmittance, making the outer lens 1 easy to process and manufacture, with low cost and good light transmittance.

[0092] Please refer to Figure 2 , Figure 4, Figure 12 and Figure 13 In some embodiments of this application, the thickness of the outer cylindrical lens portion 12 can be 5 to 11 millimeters, for example, 6 millimeters, 7 millimeters, 8 millimeters, 9 millimeters or 10 millimeters.

[0093] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It should be explained that, in the embodiments of this application, the thickness of the outer cylindrical lens portion 12 refers to the thickness of the part of the outer cylindrical lens portion 12 with the largest thickness, that is, the distance of the outer cylindrical lens portion 12 from one side surface to the other side surface along its own main axis.

[0094] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It should be explained that, in this embodiment of the application, the inner cylindrical lens 7 is located between the outer cylindrical lens portion 12 and the light-concentrating member 32, which means that along the direction in which the inner cylindrical lens 7 and the outer cylindrical lens portion 12 are arranged opposite to each other, that is, along the length direction x of the vehicle, the inner cylindrical lens 7 is located between the outer cylindrical lens portion 12 and the light-concentrating member 32.

[0095] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It should be explained that, in the embodiments of this application, the intersection of the focal line of the inner cylindrical lens 7 and the focal line of the outer cylindrical lens 12 means that the focal line of the inner cylindrical lens 7 near the near light emission line intersects with the focal line of the outer cylindrical lens 12 near the near light emission element 31.

[0096] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the thickness direction of the outer cylindrical lens portion 12 and the thickness direction of the inner cylindrical lens 7 are both along the length direction x of the vehicle. That is, the focal line of both the outer cylindrical lens portion 12 and the inner cylindrical lens 7 is perpendicular to the length direction x of the vehicle. In some embodiments of this application, the focal lines of the outer cylindrical lens portion 12 and the inner cylindrical lens 7 can be perpendicular to the length direction x of the vehicle in pairs. This allows the outer cylindrical lens portion 12 and the inner cylindrical lens 7 to work together to produce a strong converging effect on the light emitted by the low beam light-emitting module 3.

[0097] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13In some embodiments of this application, the number of low beam light-emitting modules 3 is at least two. Exemplarily, there can be two, three, four, five, or six, etc., with at least two low beam light-emitting modules 3 arranged side by side. In this way, the light emitted by at least two low beam light-emitting modules 3 can be used together to form a low beam pattern, which is beneficial to improving the luminous flux and illuminance value of the low beam pattern.

[0098] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, at least two low-beam light-emitting modules 3 are arranged side-by-side in the same direction as the extension direction of the focal line of the outer cylindrical lens section 12. The extension direction of the focal line of the outer cylindrical lens section 12 is, for example, the vertical direction z or the width direction y of the vehicle. In this way, the length of the outer cylindrical lens section 12 along its own focal line extension direction is relatively large. By arranging at least two low-beam light-emitting modules 3 side-by-side in the same direction as the extension direction of the focal line of the outer cylindrical lens section 12, one outer cylindrical lens section 12 can converge the light emitted by at least two low-beam light-emitting modules 3. The outer cylindrical lens section 12 is fully utilized, which helps to reduce the number of outer cylindrical lens sections 12 and improve the compactness of the structure.

[0099] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the focusing elements 32 of at least two near-beam light-emitting modules 3 can be integrally formed. This facilitates processing and manufacturing.

[0100] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the focal line of the outer cylindrical lens 12 extends in the width direction y of the vehicle, and the direction in which the at least two low beam light-emitting modules 3 are arranged side by side is also in the width direction y of the vehicle. The focal line of the inner cylindrical lens 7 extends in the vertical direction z, and the direction in which the first reflecting surface 321 and the second reflecting surface 322 are arranged opposite each other is in the vertical direction z. By making the direction in which the first reflecting surface 321 and the second reflecting surface 322 are arranged opposite each other in the vertical direction z, the distance of the light-concentrating element 32 along the width direction y of the vehicle is smaller, thereby reducing the space occupied by the at least two low beam light-emitting modules 3 arranged side by side along the width direction y of the vehicle, which is beneficial to improving the compactness of the structure.

[0101] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13In some embodiments of this application, the optical system composed of the outer cylindrical lens 12, the inner cylindrical lens 7 and the second reflecting surface 322 has an equivalent focal point, which is located at the first reflecting surface 321. The near-light emitting element 31 and the cutoff part 3211 are both disposed at the equivalent focal point.

[0102] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 By positioning the equivalent focal point at the first reflecting surface 321 and placing the low beam emitting element 31 at the equivalent focal point, more of the light emitted by the low beam emitting element 31 can be reflected from the first reflecting surface 321 to the second reflecting surface 322. This light is then converted into parallel light by the outer cylindrical lens portion 12, the inner cylindrical lens 7, and the second reflecting surface 322, which helps improve the pavement effect of the low beam pattern. By placing the cutoff portions 3211 at the equivalent focal point, the low beam cutoff line is made clearer.

[0103] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 It is understandable that, compared to setting the intersection of the focal line of the inner cylindrical lens 7 and the focal line of the outer cylindrical lens 12 at the second reflecting surface 322, in this embodiment of the application, the distance between the light-concentrating member 32 and the outer cylindrical lens 12 is smaller, which is beneficial to reducing the size of the vehicle lighting module along the length x of the vehicle.

[0104] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the first reflective surface 321 is curved, bending away from the second reflective surface 322. The first reflective surface 321 is close to the near-light emitting element 31, and its curved shape allows for better light collection. In some embodiments of this application, the second reflective surface 322 is planar, which facilitates its manufacturing.

[0105] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13 In some embodiments of this application, the distance between the low beam emitting element 31 and the outer lens 1 along the length x of the vehicle is 30 mm to 60 mm, for example, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm or 58 mm.

[0106] Please refer to Figure 2 , Figure 4 , Figure 12 and Figure 13In some embodiments of this application, the inner cylindrical lens 7 can be integrally formed with the condenser 32. This facilitates the processing and manufacturing of the inner cylindrical lens 7 and the condenser 32.

[0107] Please refer to Figure 2 , Figure 3 and Figure 4 It is understood that in the embodiments of this application, the focusing lens portion 11 and the outer positive cylindrical lens portion 12 are arranged side by side. Along the arrangement direction of the focusing lens portion 11 and the outer positive cylindrical lens portion 12, the length ratio of the focusing lens portion 11 to the outer positive cylindrical lens portion 12 can be various, such as 5:5, 2:8 or 3:7, etc.

[0108] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the focal line of the focusing lens section 11 is parallel to the focal line of the outer cylindrical lens section 12, and both are perpendicular to the vertical direction z. The focusing lens section 11 and the outer cylindrical lens section 12 are arranged side by side along the vertical direction z. The high beam light-emitting module 2 is disposed opposite to the focusing lens section 11, and the low beam light-emitting module 3 is disposed opposite to the outer cylindrical lens section 12.

[0109] Please refer to Figure 2 , Figure 3 and Figure 4 The headlight has a relatively large length in the horizontal direction, but a relatively small length in the vertical direction z. By making the focal line of the focusing lens 11 parallel to the focal line of the outer cylindrical lens 12, and both perpendicular to the vertical direction z, both the focusing lens 11 and the outer cylindrical lens 12 have a large length in the horizontal direction and a small length in the vertical direction z. This results in a high degree of matching between the shape of the focusing lens 11 and the outer cylindrical lens 12 and the shape of the headlight, facilitating the arrangement of the focusing lens 11 and the outer cylindrical lens 12. By arranging the focusing lens 11 and the outer cylindrical lens 12 side by side in the vertical direction z, the length of the outer lens 1 in both the width direction y and the height direction of the vehicle is moderate, which is beneficial to improving the length and rigidity of the outer lens 1.

[0110] Please refer to Figure 2 , Figure 3 and Figure 4 It is understood that, in the embodiments of this application, the extension direction of the focal line of the focusing lens 11 and the extension direction of the focal line of the outer cylindrical lens 12 are both the width direction y of the vehicle.

[0111] Please refer to Figure 2 , Figure 3 and Figure 4Of course, in some embodiments of this application, the focusing lens portion 11 and the outer cylindrical lens portion 12 may also be arranged side by side in other directions, such as side by side in the horizontal direction.

[0112] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the focusing lens portion 11 is located above the outer cylindrical lens portion 12. In this way, the light emitted by the high beam light-emitting element 21 is emitted from the upper part of the outer lens 1, which is beneficial to make the illumination distance of the light longer and meet the requirements of the high beam light pattern.

[0113] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the vehicle headlight module further includes a circuit board 8. The thickness direction of the circuit board 8 is parallel to the orientation of the high beam light-emitting element 21. The high beam light-emitting element 21 and the low beam light-emitting element 31 are disposed on the same circuit board 8, and the heat sink 4 is connected to the circuit board 8. By disposing the high beam light-emitting element 21 and the low beam light-emitting element 31 on the same circuit board 8, the number of circuit boards 8 can be reduced, as can the number of connectors and cables connected to the circuit board 8. This is beneficial for improving the reliability of electrical connections, reducing the size of the vehicle headlight module, increasing assembly density, reducing assembly difficulty, and reducing the cost of the vehicle headlight module.

[0114] Please refer to Figure 2 , Figure 3 and Figure 4 Generally, circuit board 8 is a printed circuit board (PCB). Circuit board 8 is a rigid board and can be a ceramic circuit board or an aluminum-based circuit board, etc.

[0115] Please refer to Figure 2 , Figure 3 and Figure 4 It is understood that, in the embodiments of this application, the radiator 4 and the circuit board 8 are arranged along the thickness direction of the circuit board 8, i.e., the length direction x of the vehicle, with the radiator 4 located on the side of the circuit board 8 near the rear of the vehicle. In some embodiments of this application, the circuit board 8 and the radiator 4 are fixedly connected, and the radiator 4 is fixedly connected to the lamp housing. This makes the installation of the circuit board 8 and the radiator 4 within the lamp housing more stable. In some embodiments of this application, the circuit board 8 and the radiator 4 can be fixedly connected by fasteners, and the radiator 4 can be fixedly connected to the lamp housing by fasteners.

[0116] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A vehicle lighting module, characterized in that, include: External lens (1); The high beam light-emitting module (2) includes a high beam light-emitting element (21) and a collimator (22). The high beam light-emitting element (21) is oriented towards the outer lens (1) along the thickness direction of the outer lens (1), and the collimator (22) is provided corresponding to the high beam light-emitting element (21). The low beam light-emitting module (3) is located on one side of the outer lens (1) along the thickness direction and includes a low beam light-emitting element (31) and a focusing element (32). The low beam light-emitting element (31) and the high beam light-emitting element (21) are arranged side by side. The focusing element (32) includes at least two reflective surfaces arranged opposite to each other in sequence. Of the at least two reflective surfaces, one is arranged opposite to the low beam light-emitting element (31) and the other is arranged opposite to the outer lens (1). At least one of the reflective surfaces includes a cutoff portion (3211). The light projected by the cutoff portion (3211) forms a low beam cutoff line. Heat sink (4) is disposed on the backlight side of the high beam light source (21) and the low beam light source (31), and is connected to the high beam light source (21) and the low beam light source (31).

2. The vehicle lighting module according to claim 1, characterized in that, The collimator (22) includes a reflector cup, the cup wall of which surrounds the high beam emitting element (21). The reflector cup is configured to reflect the light emitted by the high beam emitting element (21) into a first parallel light, the direction of which is the same as the orientation of the high beam emitting element (21).

3. The vehicle lighting module according to claim 1, characterized in that, The outer lens (1) includes a focusing lens section (11); The vehicle headlight lighting module also includes a diverging lens (6), which is arranged opposite to the focusing lens (11) along the orientation of the high beam light-emitting element (21). The diverging lens (6) is located between the output end of the collimator (22) and the focusing lens (11). The focal line of the focusing lens (11) coincides with the virtual focal line of the diverging lens (6), or the focal point of the focusing lens (11) coincides with the virtual focal point of the diverging lens (6).

4. The vehicle lighting module according to claim 1, characterized in that, At least two of the reflective surfaces include a first reflective surface (321) and a second reflective surface (322). The first reflective surface (321) is disposed opposite to the near light emitting element (31), and the second reflective surface (322) is disposed opposite to the first reflective surface (321). The direction in which they are disposed opposite to each other is perpendicular to the orientation of the near light emitting element (31). Along the orientation of the near light emitting element (31), the second reflective surface (322) is disposed opposite to the outer lens (1).

5. The vehicle lighting module according to claim 4, characterized in that, The outer lens (1) includes an outer positive cylindrical lens portion (12); The vehicle lighting module also includes an inner cylindrical lens (7), which is disposed opposite to the outer cylindrical lens (12). The inner cylindrical lens (7) is located between the outer cylindrical lens (12) and the light-concentrating element (32). The focal line of the inner cylindrical lens (7) intersects with the focal line of the outer cylindrical lens (12), and the intersection point is located on the side of the second reflecting surface (322) away from the inner cylindrical lens (7). The light emitted by the light-concentrating element (32) is collimated into a second parallel light by the inner cylindrical lens (7) and the outer cylindrical lens (12).

6. The vehicle lighting module according to claim 5, characterized in that, The optical system consisting of the outer positive cylindrical lens (12), the inner positive cylindrical lens (7), and the second reflecting surface (322) has an equivalent focal point located on the first reflecting surface (321). The near-light emitting element (31) and the cutoff part (3211) are both located at the equivalent focal point.

7. The vehicle lighting module according to any one of claims 1 to 6, characterized in that, The outer lens (1) includes a focusing lens section (11) and an outer positive cylindrical lens section (12). The focal line of the focusing lens section (11) is parallel to the focal line of the outer positive cylindrical lens section (12) and both are perpendicular to the vertical direction. The focusing lens section (11) and the outer positive cylindrical lens section (12) are arranged side by side in the vertical direction. The high beam light-emitting module (2) is disposed opposite to the focusing lens (11), and the low beam light-emitting module (3) is disposed opposite to the external cylindrical lens (12).

8. The vehicle lighting module according to any one of claims 1 to 6, characterized in that, It also includes a circuit board (8), the thickness direction of which is parallel to the orientation of the high beam light-emitting element (21), the high beam light-emitting element (21) and the low beam light-emitting element (31) are disposed on the same circuit board (8), and the heat sink (4) is connected to the circuit board (8).

9. A vehicle lighting device, characterized in that, The vehicle lighting module includes any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the vehicle lighting device as described in claim 9.

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