Vehicle lamp module, vehicle lamp and vehicle having the same

Abstract

The utility model discloses a kind of vehicle lamp module, vehicle lamp and vehicle with it, vehicle lamp module includes: first lens, including multiple reflection units, each reflection unit has light entrance surface, light exit surface and first reflection surface, multiple reflection units are divided into central part and spread width part, the focal point of the light exit surface of multiple reflection units of central part is located on corresponding first central surface, the focal point of the light exit surface of multiple reflection units of spread width part is located on corresponding first central surface side close to central part, in same spread width part, the focal point of the light exit surface of reflection unit farther from central part and corresponding first central surface between distance is greater, each first reflection surface is equipped with cut-off line structure, cut-off line structure is equipped at the focal point of light exit surface;Second lens, opposite light exit surface;Light emitting element, opposite light entrance surface.According to the vehicle lamp module of the utility model, the stratification phenomenon of low beam cut-off line can be avoided, and the quality of low beam cut-off line is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle lighting module, a vehicle lighting module, and a vehicle having the same. Background Technology

[0002] With the development of automotive lighting technology, people have increasingly higher requirements for the performance of low beams, and the quality of the low beam cutoff line is receiving more and more attention. In the existing technology, for low beam modules with small light output holes, in order to improve light efficiency, the solution of adding a baffle to the outside lens is generally no longer used. Instead, a solution of splicing multiple light patterns is used. However, this solution is often prone to layering, which affects the perception of the cutoff line. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a vehicle headlight module that, while ensuring beam width, effectively avoids the layering phenomenon of the low beam cutoff line, improves the quality of the low beam cutoff line, and enhances optical efficiency.

[0004] This utility model also proposes a vehicle light, which includes the above-mentioned vehicle light module.

[0005] This utility model also proposes a vehicle, which includes the above-mentioned vehicle lights.

[0006] According to an embodiment of the present invention, a vehicle headlight module includes: a first lens, the first lens comprising a plurality of reflective units arranged along a first direction, each reflective unit having an incident surface, an exiting surface, and a first reflective surface, the incident surface and the exiting surface being disposed opposite to each other in a second direction, the center surface of each reflective unit perpendicular to the first direction being a first center surface, the plurality of reflective units being divided into a central portion and a widened portion, the widened portion being two and respectively located on both sides of the central portion along the first direction, the focal points of the exiting surfaces of the plurality of reflective units in the central portion being located on the corresponding first center surface, and the focal points of the exiting surfaces of the plurality of reflective units in the widened portion being located on the corresponding first center surface. On the side of the central surface closer to the central portion, within the same widened portion, the distance between the focal point of the light-emitting surface of the reflecting unit farther from the central portion and the corresponding first central surface is greater. Each first reflecting surface is provided with a cutoff line structure, which is located at the focal point of the light-emitting surface. The second direction is perpendicular to the first direction. A second lens is located on the side of the light-emitting surface of the reflecting unit away from the light-incident surface and is opposite to the light-emitting surfaces of multiple reflecting units. A light-emitting element is located on the side of the first lens away from the second lens, and there are multiple light-emitting elements, each of which is opposite to the light-incident surface of the multiple reflecting units.

[0007] According to the vehicle headlight module of this utility model embodiment, by designing the light-emitting surfaces of multiple reflective units in the extended portion, the focal points of the light-emitting surfaces of the multiple reflective units in the extended portion are offset relative to their corresponding first central surfaces towards the side closer to the center. This causes the light rays located at both ends of the first lens along the first direction to deflect towards the center, ensuring that all the light rays emitted from the first lens can enter the second lens, thus improving optical efficiency. Each reflective unit's light-emitting surface has a cutoff line structure at its focal point, giving the extended portion a similar angled cutoff line as the center portion. Within the same extended portion, the distance between the focal point of the light-emitting surface of the reflective unit farther from the center and its corresponding first central surface is greater. This effectively avoids the layering phenomenon of the low beam cutoff line while ensuring the extended portion, thus improving the quality of the low beam cutoff line.

[0008] In addition, the vehicle headlight module according to this utility model may also have the following additional technical features: In some embodiments, the widened portion includes a first reflective unit and a second reflective unit. The first reflective unit is located on the side of the second reflective unit away from the central portion. The distance between the focal point of the light-emitting surface of the first reflective unit and the corresponding first central surface is a, and the distance between the focal point of the light-emitting surface of the second reflective unit and the corresponding first central surface is b, satisfying: 2mm < a ≤ 3mm, 0mm < b ≤ 2mm.

[0009] In some embodiments, the reflective unit further has a second reflective surface, which is disposed opposite to the first reflective surface in a third direction. The light emitted by the light-emitting element enters through the light-incident surface of the corresponding reflective unit, and is reflected by the first reflective surface and the second reflective surface in sequence before being emitted from the light-emitting surface. The first direction, the second direction and the third direction are perpendicular to each other.

[0010] In some embodiments, the angle between the second reflective surface and the plane perpendicular to the third direction is c, and satisfies: 40°≤c≤50°.

[0011] In some embodiments, the light-emitting element is disposed at the focal point of the first reflective surface of the corresponding reflective unit.

[0012] In some embodiments, the minimum distance between the light-emitting element and the light-incident surface of the corresponding reflective unit is d, and satisfies: 0.8mm≤d≤1.5mm.

[0013] In some embodiments, in the direction from the first lens to the second lens, the two surfaces of the second lens are a first surface and a second surface, both of which bulge in a direction away from the first lens, and the curvature of the first surface is less than the curvature of the second surface.

[0014] In some embodiments, the focal length of the second lens is e, and satisfies: 50mm≤e≤80mm.

[0015] In some embodiments, the first lens is a transparent plastic component; And / or, the second lens is a transparent plastic component.

[0016] This utility model also provides a vehicle lamp having the above-described embodiments.

[0017] According to the vehicle lamp of this utility model embodiment, by providing the above-mentioned vehicle lamp module, the light-emitting surfaces of multiple reflective units in the extended portion are designed such that the focal points of the light-emitting surfaces of the multiple reflective units in the extended portion are offset relative to their corresponding first central surfaces towards the side closer to the center portion. This causes the light rays located at both ends of the first lens along the first direction to deflect towards the center portion, so that all the light rays emitted from the first lens can enter the second lens, improving optical efficiency. Each reflective unit's light-emitting surface focal point is designed with a cutoff line structure, so that the extended portion also has a cutoff line with an angle similar to the center portion. Within the same extended portion, the distance between the focal point of the light-emitting surface of the reflective unit farther from the center portion and its corresponding first central surface is larger. This can effectively avoid the layering phenomenon of the low beam cutoff line while ensuring the extended portion, thus improving the quality of the low beam cutoff line.

[0018] This utility model also provides a vehicle having the above-described embodiments.

[0019] According to the vehicle embodiment of this utility model, by providing the aforementioned headlights, the light-emitting surfaces of multiple reflective units in the extended portion are designed such that the focal points of the light-emitting surfaces of these units are offset relative to their corresponding first central surfaces towards the side closer to the center. This causes the light rays located at both ends of the first lens along the first direction to deflect towards the center, ensuring that all light rays emitted from the first lens can enter the second lens, thus improving optical efficiency. Each reflective unit's light-emitting surface has a cutoff line structure at its focal point, giving the extended portion a similar angled cutoff line as the central portion. Within the same extended portion, the distance between the focal point of the light-emitting surface of a reflective unit farther from the center and its corresponding first central surface is greater. This effectively avoids the layering phenomenon of the low beam cutoff line while ensuring the extended width, improving the quality of the low beam cutoff line and thus enhancing vehicle safety.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of a vehicle headlight module according to an embodiment of the present utility model; Figure 2 This is a top view of the vehicle headlight module according to an embodiment of the present utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a rear view of a vehicle headlight module according to an embodiment of the present utility model; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 This is a left view of the vehicle headlight module according to an embodiment of the present utility model; Figure 7 This is a structural view of a reflective unit in the central portion of the first lens of the vehicle headlight module according to an embodiment of the present invention; Figure 8 This is a structural view of the second reflective unit of the extended portion of the first lens of the vehicle headlight module according to an embodiment of the present utility model; Figure 9 This is a structural view of the first reflective unit of the extended portion of the first lens of the vehicle headlight module according to an embodiment of the present utility model. Figure 10 This is a light path diagram of the vehicle headlight module according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the light convergence point of a vehicle headlight module according to an embodiment of the present utility model, wherein the light-emitting element is not shown; Figure 12 This is a top view of a vehicle headlight module according to an embodiment of the present utility model, wherein the light from a reflecting unit in the central portion of the first lens is shown; Figure 13 This is a light pattern diagram of a reflective unit in the central portion of the first lens of the vehicle headlight module according to an embodiment of the present invention; Figure 14 This is a top view of a vehicle headlight module according to an embodiment of the present utility model, wherein the light from the first reflecting unit of a widened portion of the first lens is shown; Figure 15This is a light pattern diagram of the first reflecting unit of a broadened portion of the first lens of the vehicle headlight module according to an embodiment of the present invention; Figure 16 This is a top view of a vehicle headlight module according to an embodiment of the present utility model, wherein the light from the first reflecting unit of another widened portion of the first lens is shown; Figure 17 This is a light pattern diagram of the first reflecting unit of another extended portion of the first lens of the vehicle headlight module according to an embodiment of the present invention; Figure 18 This is an overall light pattern diagram of the vehicle headlight module according to an embodiment of the present utility model.

[0022] Figure label: 100. Headlight module; 1. First lens; 11. Reflecting unit; 111. First sub-lens section; 112. Second sub-lens section; 12. Light-incident surface; 13. Light-out surface; 14. First reflecting surface; 141. Cut-off line structure; 142. First segment; 143. Second segment; 144. Third segment; 145. First line segment; 146. First inflection point; 15. Second reflecting surface; 16. First center surface; 17. Center portion; 18. Widened portion; 181. First reflecting unit; 182. Second reflecting unit; 2. Second lens; 21. First surface; 22. Second surface; 3. Light-emitting element. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0025] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a communication 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 this utility model according to the specific circumstances.

[0027] The following description, with reference to the accompanying drawings, describes a vehicle light module 100 according to an embodiment of the present invention.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the vehicle headlight module 100 according to an embodiment of the present invention includes a first lens 1, a second lens 2, and a light-emitting element 3.

[0029] Specifically, see the attached document. Figure 1 and attached Figure 2 As shown, in conjunction with the reference appendix Figure 7 Appendix Figure 8 and attached Figure 9 As shown, the first lens 1 includes a first lens along a first direction (such as...) Figure 2 Multiple reflective units 11 arranged as shown in the figure, each reflective unit 11 having an incident light surface 12, an exiting light surface 13, and a first reflective surface 14, the incident light surface 12 and the exiting light surface 13 being aligned in a second direction (as shown in the figure). Figure 6As shown, the reflective units 11 are arranged opposite each other. The center surface of each reflective unit 11 perpendicular to the first direction is the first center surface 16. The multiple reflective units 11 are divided into a central part 17 and a widened part 18. There are two widened parts 18, which are located on both sides of the central part 17 along the first direction. The focal points of the light-emitting surfaces 13 of the multiple reflective units 11 in the central part 17 are all located on the corresponding first center surface 16. The focal points of the light-emitting surfaces 13 of the multiple reflective units 11 in the widened part 18 are all located on the side of the corresponding first center surface 16 closer to the central part 17. Within the same widened part 18, the distance between the focal point of the light-emitting surface 13 of the reflective unit 11 farther from the central part 17 and the corresponding first center surface 16 is greater. Each first reflective surface 14 is provided with a cutoff line structure 141. The cutoff line structure 141 is located at the focal point of the light-emitting surface 13, and the second direction is perpendicular to the first direction.

[0030] Further, see attached document. Figure 2 and attached Figure 6 As shown, the second lens 2 is located on the side of the light-emitting surface 13 of the reflecting unit 11 that is away from the light-incident surface 12 and is opposite to the light-emitting surface 13 of the multiple reflecting units 11. The light-emitting element 3 is located on the side of the first lens 1 that is away from the second lens 2 and there are multiple light-emitting elements 3. The multiple light-emitting elements 3 are opposite to the light-incident surface 12 of the multiple reflecting units 11 one by one.

[0031] It is understandable that, such as Figure 10 As shown, the light emitted by the light-emitting element 3 enters through the light-incident surface 12 of the corresponding reflective unit 11 and forms an image on the first reflective surface 14. After total internal reflection, the light is emitted through the light-out surface 13 and then enters the second lens 2 to project a near-beam pattern.

[0032] In existing technologies, for low beam modules with small output apertures, the solution of adding a baffle outside the focal point is generally no longer used to improve light efficiency. Instead, a solution of splicing multiple beam patterns is adopted. Currently, low beams with small vertical apertures on the market are generally composed of a beam pattern responsible for center brightness and a beam pattern responsible for beam extension, which are superimposed to form a complete low beam pattern. Because the cutoff line of the part responsible for center brightness has a corner while the cutoff line of the part responsible for beam extension does not have a corner, the low beam cutoff lines cannot be completely overlapped, which easily leads to layering and affects the perception of the cutoff line.

[0033] This application designs the light-emitting surfaces 13 of the multiple reflective units 11 of the extended portion 18 so that the focal points of the light-emitting surfaces 13 of the multiple reflective units 11 of the extended portion 18 are offset relative to their corresponding first center surface 16 toward the side closer to the center portion 17. This causes the light rays located at both ends of the first lens 1 along the first direction to deflect toward the center portion 17, so that all the light rays emitted from the first lens 1 can enter the second lens 2, thereby improving optical efficiency.

[0034] Further, see attached document. Figure 2 As shown, in conjunction with the reference appendix Figure 7 Appendix Figure 8 Appendix Figure 9 and attached Figure 11 As shown, each reflective unit 11 has a cutoff line structure 141 at the focal point of its light-emitting surface 13, so that the widened portion 18 also has a cornered cutoff line similar to the central portion 17. When the light-emitting element 3 emits light towards the corresponding incident surface 12, a bright spot is formed on the first reflective surface 14. At this time, the cutoff line structure 141 can act as a shield, affecting the shape of the bright spot to match the shape of the near beam cutoff line. Within the same widened portion 18, the distance between the focal point of the light-emitting surface 13 of the reflective unit 11 farther from the central portion 17 and the corresponding first central surface 16 is greater. In other words, the distance between the cutoff line structure 141 on the reflective unit 11 farther from the central portion 17 and the corresponding first central surface 16 is greater. This can effectively avoid the layering phenomenon of the near beam cutoff line while ensuring widening, thus improving the quality of the near beam cutoff line.

[0035] In a specific example, see Appendix Figure 2 As shown, in conjunction with the reference appendix Figure 7 Appendix Figure 8 and attached Figure 9 As shown, the first lens 1 includes seven reflective units 11 arranged along a first direction. The three reflective units 11 located in the middle of the seven reflective units 11 form a central part 17. The focal points f0 of the light-emitting surfaces 13 of the three reflective units 11 in the central part 17 are all located on the corresponding first central surface 16, mainly responsible for the center brightness of the near beam. The two broadening parts 18 each include two reflective units 11. The focal points of the light-emitting surfaces 13 of the two reflective units 11 in the broadening part 18 are all located on the side of the corresponding first central surface 16 closer to the central part 17, mainly responsible for the broadening of the near beam. The two reflective units 11 in the same broadening part 18 are the first reflective unit 181 and the second reflective unit 182. The first reflective unit 181 is located on the side of the second reflective unit 182 away from the central part 17. In the same broadening part 18, the distance between the focal point f1 of the light-emitting surface 13 of the first reflective unit 181 and the corresponding first central surface 16 is greater than the distance between the focal point f2 of the light-emitting surface 13 of the second reflective unit 182 and the corresponding first central surface 16. Among them, the light-emitting surface 13 of the three reflective units 11 in the central part 17 has a radius of 30mm-50mm.

[0036] For example, the radii of the light-emitting surfaces 13 of the three reflective units 11 in the central part 17 can be 30mm, 32mm, 35mm, 37mm, 40mm, 41mm, 43mm, 45mm, 48mm or 50mm.

[0037] Specifically, the light rays from a reflecting unit 11 in the central portion 17 of the first lens 1, such as... Figure 12 As shown, the light pattern formed by the light rays from a reflecting unit 11 in the central portion 17 of the first lens 1 is as follows: Figure 13 As shown, the light rays from the first reflecting unit 181 of the widened portion 18 on one side along the first direction of the first lens 1 are as follows: Figure 14 As shown, the light pattern formed by the light rays from the first reflecting unit 181 of the widened portion 18 on one side along the first direction of the first lens 1 is as follows. Figure 15 As shown, the light rays from the first reflecting unit 181 of the broadened portion 18 on the other side of the first lens 1 along the first direction are as follows: Figure 16 As shown, the light pattern formed by the light rays from the first reflecting unit 181 of the broadened portion 18 on the other side of the first lens 1 along the first direction is as follows: Figure 17 As shown, by stitching together the light patterns formed by the rays from the seven reflecting units 11, the following can be obtained: Figure 18 The overall light pattern diagram of the headlight module shown indicates that the quality of the low beam cutoff line has been improved.

[0038] For details, please refer to the appendix. Figure 3 and attached Figure 5 As shown, in conjunction with the reference appendix Figure 2 and attached Figure 4 As shown, the cutoff line structure 141 includes a first segment 142, a second segment 143, and a third segment 144 arranged and connected sequentially along a first direction. In the direction from the second reflecting surface 15 to the first reflecting surface 14, the first segment 142 and the third segment 144 extend obliquely toward each other. The second segment 143 is connected to the end of the first segment 142 and the third segment 144 that is away from the second reflecting surface 15. Along the first direction, the end of the second segment 143 that is farther away from the second reflecting surface 15 forms a first line segment 145. The point on the first line segment 145 that is closest to the second lens 2 is the first inflection point 146. The first inflection point 146 is located at the focal point of the light-emitting surface 13 of the corresponding reflecting unit 11.

[0039] Preferably, the light-emitting element 3 is an LED (light-emitting diode). Firstly, LEDs have high luminous efficiency. Under the same brightness, LED low beams consume less power and have a high energy conversion rate, which can significantly reduce engine load, improve fuel economy, or extend driving range. Secondly, LEDs have a long service life and are extremely resistant to vibration and shock, making them suitable for bumpy road conditions and relatively extending the service life of the headlight module 100. Thirdly, LEDs have a fast response speed, which can avoid blind spots caused by delay and improve safety.

[0040] According to the vehicle headlight module 100 of this utility model embodiment, by designing the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18, the focal points of the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18 are offset relative to their corresponding first central surface 16 towards the side closer to the central portion 17. This causes the light rays located at both ends of the first lens 1 along the first direction to deflect towards the central portion 17, so that all the light rays emitted from the first lens 1 can enter the second lens 2, improving optical efficiency. Each reflective unit 11 has a cutoff line structure 141 at the focal point of its light-emitting surface 13, so that the widened portion 18 also has a cutoff line with a corner similar to the central portion 17. Within the same widened portion 18, the distance between the focal point of the light-emitting surface 13 of the reflective unit 11 farther from the central portion 17 and the corresponding first central surface 16 is larger. This can effectively avoid the layering phenomenon of the low beam cutoff line while ensuring widening, thus improving the quality of the low beam cutoff line.

[0041] In some embodiments of this utility model, reference is made to the appendix. Figure 2 Appendix Figure 8 and attached Figure 9 As shown, the widening portion 18 includes a first reflecting unit 181 and a second reflecting unit 182. The first reflecting unit 181 is located on the side of the second reflecting unit 182 away from the center portion 17. The distance between the focal point of the light-emitting surface 13 of the first reflecting unit 181 and the corresponding first center surface 16 is a, and the distance between the focal point of the light-emitting surface 13 of the second reflecting unit 182 and the corresponding first center surface 16 is b, satisfying: 2mm < a ≤ 3mm, 0mm < b ≤ 2mm. This can match the situation where, within the same widening portion 18, the distance between the focal point f1 of the light-emitting surface 13 of the first reflecting unit 181 and the corresponding first center surface 16 is greater than the distance between the focal point f2 of the light-emitting surface 13 of the second reflecting unit 182 and the corresponding first center surface 16. By shifting the cutoff line structure 141 to a certain extent, the layering phenomenon of the low beam cutoff line can be effectively avoided while ensuring widening, thus improving the quality of the low beam cutoff line.

[0042] For example, the distance a between the focal point of the light-emitting surface 13 of the first reflecting unit 181 and the corresponding first center surface 16 can be 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm or 3mm, and the distance b between the focal point of the light-emitting surface 13 of the second reflecting unit 182 and the corresponding first center surface 16 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2mm.

[0043] In some embodiments of this utility model, reference is made to the appendix. Figure 6 and attached Figure 10 As shown, the reflecting unit 11 also has a second reflecting surface 15, which is in a third direction (e.g., ...) with the first reflecting surface 14. Figure 6 As shown, the light emitted by the light-emitting element 3 is arranged opposite to each other. The light emitted by the light-emitting element 3 enters through the light-incident surface 12 of the corresponding reflective unit 11, and is reflected by the first reflective surface 14 and the second reflective surface 15 in sequence before being emitted from the light-emitting surface 13. The first direction, the second direction and the third direction are perpendicular to each other. The light emitted by the light-emitting element 3 that is irradiated onto the first reflective surface 14 is totally reflected by the first reflective surface 14 and onto the second reflective surface 15. The second reflective surface 15 can totally reflect the light coming from the first reflective surface 14 again to change the light path, so that the light is finally emitted from the light-emitting surface 13.

[0044] In a specific example, see Appendix Figure 6 As shown, the reflecting unit 11 includes a first sub-lens portion 111 and a second sub-lens portion 112 arranged and connected in a second direction. The first sub-lens portion 111 is located on the side of the second sub-lens portion 112 away from the second lens 2. The side of the first sub-lens portion 111 away from the second sub-lens portion 112 forms an incident light surface 12. The side of the second sub-lens portion 112 away from the first sub-lens portion 111 forms an exit light surface 13. The side of the first sub-lens portion 111 along a third direction forms a first reflecting surface 14. The side of the first sub-lens portion 111 and the side of the second sub-lens portion 112 along a third direction away from the first reflecting surface 14 forms a second reflecting surface 15.

[0045] In a further embodiment of this utility model, reference is made to the appendix. Figure 6As shown, the angle between the second reflecting surface 15 and the plane perpendicular to the third direction is c, and satisfies: 40°≤c≤50°. The angle between the second reflecting surface 15 and the plane perpendicular to the third direction can be adjusted according to specific design requirements to ensure that all the light reflected from the first reflecting surface 14 can be reflected onto the second reflecting surface 15, and that all the light received by the second reflecting surface 15 can be emitted from the light-emitting surface 13 after reflection by the second reflecting surface 15. For example, the angle c between the second reflecting surface 15 and the plane perpendicular to the third direction can be 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, or 50°.

[0046] In some embodiments of this utility model, reference is made to the appendix. Figure 6 As shown, the light-emitting element 3 is located at the focal point of the first reflective surface 14 of the corresponding reflective unit 11, which can avoid defocusing, ensure the clarity of the near beam cutoff line, and ensure light efficiency.

[0047] In some embodiments of this utility model, reference is made to the appendix. Figure 3 As shown, the minimum distance between the light-emitting element 3 and the incident surface 12 of the corresponding reflective unit 11 is d, and satisfies: 0.8mm≤d≤1.5mm.

[0048] Understandably, if d < 0.8 mm, the distance between the light-emitting element 3 and the light-incident surface 12 of the corresponding reflective unit 11 is too close. On the one hand, the high temperature generated by the light-emitting element 3 during long-term operation can easily cause the first lens 1 to deform due to heat, leading to light scattering or focusing failure. On the other hand, during the assembly of the vehicle lamp module 100, the close distance can easily cause collisions between the light-emitting element 3 and the first lens 1, affecting the reliability and stability of the light-emitting element 3 and the first lens 1, and affecting the clarity of the low beam cutoff line. If d > 1.5 mm, the distance between the light-emitting element 3 and the light-incident surface 12 of the corresponding reflective unit 11 is too close. If the distance between the light-emitting element 3 and the incident light surface 12 is too large, some of the light emitted by the light-emitting element 3 cannot be received by the incident light surface 12, resulting in waste and low light efficiency. However, by limiting the distance between the light-emitting element 3 and the incident light surface 12 of the corresponding reflective unit 11 to 0.8mm≤d≤1.5mm, this application can reduce the possibility of deformation of the first lens 1 while ensuring light efficiency, avoid light scattering or focusing failure, and reduce the probability of collision between the light-emitting element 3 and the first lens 1 during assembly, ensuring the integrity of the light-emitting element 3 and the first lens 1, and relatively extending the service life of the light-emitting element 3 and the first lens 1.

[0049] For example, the minimum distance d between the light-emitting element 3 and the light-incident surface 12 of the corresponding reflective unit 11 can be 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm or 1.5mm.

[0050] In some embodiments of this utility model, reference is made to the appendix. Figure 6 As shown, in the direction from the first lens 1 to the second lens 2, the two surfaces of the second lens 2 are the first surface 21 and the second surface 22, respectively. Both the first surface 21 and the second surface 22 protrude in the direction away from the first lens 1, and the curvature of the first surface 21 is less than the curvature of the second surface 22. The first lens 1 is a focal lens, and the second lens 2 is a focal line lens. After light enters the second lens 2 from the first lens 1, the second lens 2 can converge in the third direction, but it does not converge in the first direction. On the one hand, it can make the low beam pattern present a "narrow and steep" shape in the third direction, and the light is concentrated in the area closer to the front of the vehicle, avoiding the headlight module 100 from shining too high in the third direction, avoiding direct light into the eyes of oncoming vehicle drivers, reducing visual interference to oncoming vehicle drivers, and relatively reducing the risk of traffic accidents. On the other hand, it can better play a widening role, making the low beam pattern as wide as possible in the first direction, which can illuminate the inner side of the road surface when the vehicle is turning, avoiding collisions caused by blind spots for the driver, and improving safety.

[0051] In some embodiments of this utility model, the focal length of the second lens 2 is e, and satisfies: 50mm ≤ e ≤ 80mm. If e > 80mm, the distance between the first lens 1 and the second lens 2 in the second direction is too large, causing some light emitted from the first lens 1 to be unreceived by the second lens 2, resulting in waste and low light efficiency. If e < 50mm, the distance between the first lens 1 and the second lens 2 in the second direction is too small. Although all the light emitted from the first lens 1 can be received by the second lens 2, the brightness of the light emitted from the second lens 2 will be low. This application, by limiting 50mm ≤ e ≤ 80mm, ensures that the distance between the first lens 1 and the second lens 2 in the second direction is appropriate, which can improve the brightness of the light emitted from the second lens 2 while ensuring light efficiency, thus guaranteeing the quality of the near-light cutoff line. For example, the focal length e of the second lens 2 can be 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, or 80mm.

[0052] In some embodiments of this utility model, the first lens 1 is a transparent plastic part, which is convenient to manufacture and process. On the one hand, it can ensure the light transmittance and the stability of the lighting effect. On the other hand, it can significantly reduce the weight of the vehicle lamp module 100 and reduce vehicle energy consumption.

[0053] Furthermore, the second lens 2 is a transparent plastic part, which is convenient to manufacture and process. On the one hand, it can ensure the light transmittance and the stability of the lighting effect. On the other hand, it can significantly reduce the weight of the headlight module 100 and reduce vehicle energy consumption.

[0054] In a specific example, the first lens 1 is made of PC (Polycarbonate). PC material combines high transparency, excellent impact resistance, heat resistance, flame retardancy, and good electrical insulation, making the light transmittance of the first lens 1 close to that of glass. This ensures stable light transmittance and illumination effect, and makes the impact strength of the first lens 1 much higher than that of ordinary plastics, thus guaranteeing its service life. Furthermore, the PC material of the first lens 1 can be molded into complex optical surfaces through injection molding, achieving precise light focusing and diffusion, meeting the stringent requirements of near-light and dark cutoff lines, and preventing glare for oncoming vehicles. At the same time, considering the close distance between the first lens 1 and the light-emitting element 3, the use of PC material allows the first lens 1 to withstand the high temperatures generated by the light-emitting element 3 during prolonged operation, preventing light scattering or focusing failure due to thermal deformation.

[0055] Furthermore, the second lens 2 is made of PMMA (Polymethyl Methacrylate). PMMA material has advantages such as high transparency, low price, and easy machining, which can ensure the light transmittance of the second lens 2.

[0056] Of course, this utility model is not limited to this; the first lens 1 and the second lens 2 can also be other transparent plastic parts.

[0057] This utility model also proposes a vehicle lamp having the vehicle lamp module 100 of the above embodiments.

[0058] According to the vehicle lamp of this utility model embodiment, by providing the above-mentioned vehicle lamp module 100, the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18 are designed such that the focal points of the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18 are offset relative to their corresponding first center surface 16 towards the side closer to the center portion 17. This causes the light rays located at both ends of the first lens 1 along the first direction to deflect towards the center portion 17, so that all the light rays emitted from the first lens 1 can enter the second lens 2, thereby improving optical efficiency. Each reflective unit 11 has a cutoff line structure 141 designed at the focal point of its light-emitting surface 13, so that the widened portion 18 also has a cutoff line with a corner similar to the center portion 17. Within the same widened portion 18, the distance between the focal point of the light-emitting surface 13 of the reflective unit 11 farther from the center portion 17 and the corresponding first center surface 16 is larger. This can effectively avoid the layering phenomenon of the low beam cutoff line while ensuring widening, thereby improving the quality of the low beam cutoff line.

[0059] This utility model also proposes a vehicle having the headlights described in the above embodiments.

[0060] According to the vehicle of this utility model embodiment, by providing the above-mentioned headlights, the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18 are designed such that the focal points of the light-emitting surfaces 13 of the multiple reflective units 11 of the widened portion 18 are offset relative to their corresponding first central surface 16 towards the side closer to the central portion 17. This causes the light rays located at both ends of the first lens 1 along the first direction to deflect towards the central portion 17, so that all the light rays emitted from the first lens 1 can enter the second lens 2, improving optical efficiency. Each reflective unit 11 has a cutoff line structure 141 at the focal point of its light-emitting surface 13, so that the widened portion 18 also has a cutoff line with a bend similar to the central portion 17. Within the same widened portion 18, the distance between the focal point of the light-emitting surface 13 of the reflective unit 11 farther from the central portion 17 and the corresponding first central surface 16 is larger. This can effectively avoid the layering phenomenon of the low beam cutoff line while ensuring widening, improve the quality of the low beam cutoff line, and thus improve vehicle safety.

[0061] The vehicle light module 100, vehicle lights, and other components and operations of the vehicle according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., 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 present invention. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle headlight module, characterized in that, include: A first lens (1) includes a plurality of reflective units (11) arranged along a first direction. Each reflective unit (11) has an incident light surface (12), an exit light surface (13), and a first reflective surface (14). The incident light surface (12) and the exit light surface (13) are arranged opposite to each other in a second direction. The center surface of each reflective unit (11) perpendicular to the first direction is a first center surface (16). The plurality of reflective units (11) are divided into a central portion (17) and a broadened portion (18). There are two broadened portions (18) located on both sides of the central portion (17) along the first direction. The exit light of the plurality of reflective units (11) in the central portion (17) is... The focal points of the surface (13) are all located on the corresponding first central surface (16). The focal points of the light-emitting surfaces (13) of the multiple reflective units (11) of the widened portion (18) are all located on the side of the corresponding first central surface (16) closer to the central portion (17). Within the same widened portion (18), the distance between the focal point of the light-emitting surface (13) of the reflective unit (11) farther from the central portion (17) and the corresponding first central surface (16) is greater. Each first reflective surface (14) is provided with a cutoff line structure (141). The cutoff line structure (141) is located at the focal point of the light-emitting surface (13). The second direction is perpendicular to the first direction. The second lens (2) is located on the side of the light-emitting surface (13) of the reflecting unit (11) that is away from the light-incident surface (12) and is opposite to the light-emitting surface (13) of the plurality of reflecting units (11). The light-emitting element (3) is located on the side of the first lens (1) away from the second lens (2) and there are multiple light-emitting elements (3). The multiple light-emitting elements (3) are opposite to the light-incident surfaces (12) of the multiple reflection units (11).

2. The vehicle headlight module according to claim 1, characterized in that, The widened portion (18) includes a first reflective unit (181) and a second reflective unit (182). The first reflective unit (181) is located on the side of the second reflective unit (182) away from the central portion (17). The distance between the focal point of the light-emitting surface (13) of the first reflective unit (181) and the corresponding first central surface (16) is a, and the distance between the focal point of the light-emitting surface (13) of the second reflective unit (182) and the corresponding first central surface (16) is b, and satisfies: 2mm < a ≤ 3mm, 0mm < b ≤ 2mm.

3. The vehicle headlight module according to claim 1, characterized in that, The reflective unit (11) also has a second reflective surface (15), which is arranged opposite to the first reflective surface (14) in a third direction. The light emitted by the light-emitting element (3) enters through the light-incident surface (12) of the corresponding reflective unit (11), and is reflected by the first reflective surface (14) and the second reflective surface (15) in sequence before being emitted from the light-emitting surface (13). The first direction, the second direction and the third direction are perpendicular to each other.

4. The vehicle headlight module according to claim 3, characterized in that, The angle between the second reflective surface (15) and the plane perpendicular to the third direction is c, and satisfies: 40°≤c≤50°.

5. The vehicle headlight module according to claim 1, characterized in that, The light-emitting element (3) is located at the focal point of the first reflective surface (14) of the corresponding reflective unit (11).

6. The vehicle headlight module according to claim 1, characterized in that, The minimum distance between the light-emitting element (3) and the light-incident surface (12) of the corresponding reflective unit (11) is d, and satisfies: 0.8mm≤d≤1.5mm.

7. The vehicle headlight module according to claim 1, characterized in that, In the direction from the first lens (1) to the second lens (2), the two surfaces of the second lens (2) are a first surface (21) and a second surface (22), respectively. Both the first surface (21) and the second surface (22) protrude in a direction away from the first lens (1), and the curvature of the first surface (21) is less than the curvature of the second surface (22).

8. The vehicle headlight module according to claim 1, characterized in that, The focal length of the second lens (2) is e, and satisfies: 50mm≤e≤80mm.

9. The vehicle headlight module according to claim 1, characterized in that, The first lens (1) is a transparent plastic part; And / or, the second lens (2) is a transparent plastic part.

10. A vehicle light, characterized in that, Includes the headlight module (100) according to any one of claims 1-9.

11. A vehicle, characterized in that, Including the vehicle lights according to claim 10.

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