Car lamp module and car lamp

Abstract

The invention provides a vehicle lamp module and a vehicle lamp. The automobile lamp module comprises a low-beam assembly, a high-beam assembly and an outer lens, the low-beam assembly comprises a low-beam light source and a first inner lens, and the low-beam light source is used for providing a first light beam for the first inner lens; the high-beam assembly comprises a high-beam light source and a second inner lens, the high-beam light source is used for providing a second light beam for the second inner lens, and the outer lens is arranged on a light emitting path of the first inner lens; wherein the first inner lens is used for reflecting a first light beam to the outer lens to enable the outer lens to project a low beam light type, the second inner lens is used for projecting a second light beam into the first inner lens, and the first inner lens is further used for reflecting the second light beam to the outer lens to enable the outer lens to project a high beam light type. According to the automobile lamp module, on one hand, no abutted seam exists on the surface of the outer lens, and on the other hand, the opening size of the automobile lamp module can be reduced. In this way, the adaptability and the application scene of the vehicle lamp module on a vehicle can be improved.

Description

Technical Field

[0001] This application relates to the technical field of vehicle lamps, and particularly to a vehicle lamp module and a vehicle lamp. Background Art

[0002] The integrated high and low beam vehicle lamp module is becoming the mainstream development direction. Moreover, with the development of intelligent vehicle lamps, the outer lens opening of the high and low beam vehicle lamp module shows a gradually decreasing trend. With the smaller opening size, the high and low beam vehicle lamp module can be better matched with the signal lamp, thus greatly enriching the styling expression of the front of the whole vehicle. Therefore, the high and low beam vehicle lamp module with an ultra-narrow opening is increasingly favored by vehicle manufacturers.

[0003] In a related art high and low beam vehicle lamp module, its outer lens is formed by splicing a low beam area and a high beam area. The low beam area projects a low beam light pattern, and the high beam area projects a high beam light pattern.

[0004] However, the lens surface curvature of the low beam area is different from that of the high beam area. When the two are spliced together, an obvious seam will be formed on the surface of the outer lens, resulting in lower aesthetics of the vehicle lamp itself and also causing too large an opening size of the outer lens. In this way, the application and development of the vehicle lamp module on the whole vehicle are restricted. Summary of the Invention

[0005] An embodiment of this application provides a vehicle lamp module and a vehicle lamp, aiming to improve the problems of the relatively large opening size and low aesthetics of the vehicle lamp module in the related art.

[0006] In a first aspect, an embodiment of this application provides a vehicle lamp module. The vehicle lamp module includes: a low beam component, including a low beam light source and a first inner lens, the low beam light source being configured to provide a first light beam to the first inner lens; a high beam component, including a high beam light source and a second inner lens, the high beam light source being configured to provide a second light beam to the second inner lens; and an outer lens disposed on the light output optical path of the first inner lens;

[0007] Wherein, the first inner lens is configured to reflect the first light beam to the outer lens, so that the outer lens projects a low beam light pattern, the second inner lens is configured to project the second light beam into the first inner lens, and the first inner lens is further configured to reflect the second light beam to the outer lens, so that the outer lens projects a high beam light pattern.

[0008] In this application, the first light beam for low beam and the second light beam for high beam share the optical path within the first inner lens, and finally both are emitted from the same light-emitting surface of the first inner lens to the outer lens. Only a single light-condensing area can be provided on the outer lens, and there is no need to form a high-beam area and a low-beam area by splicing. With such an arrangement, on the one hand, there is no seam on the surface of the outer lens, and the curvature of the inner surface and the outer surface is continuous, which is beneficial to improving the aesthetics of the headlight module. On the other hand, the height and width of the outer lens can be reduced, which is beneficial to reducing the opening size of the headlight module. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module on the vehicle.

[0009] In some embodiments, the height of the outer lens is less than or equal to 15 mm. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module on the vehicle.

[0010] In some embodiments, the width of the outer lens is less than or equal to 50 mm. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module on the vehicle.

[0011] In some embodiments, the first inner lens includes a first optical interface, a first reflecting surface opposite to the first optical interface, and a first light-emitting surface provided on the reflection optical path of the first reflecting surface. The low-beam light source is provided on one side of the first optical interface; the first optical interface is used to receive the first light beam and project the first light beam onto the first reflecting surface, the first reflecting surface is used to reflect the first light beam into parallel light and project the first light beam onto the first light-emitting surface, and the first light-emitting surface is used to converge the first light beam and project the first light beam onto the outer lens.

[0012] The first reflecting surface plays a role in parallel convergence of the first light beam. On the one hand, it can reduce light loss and improve light efficiency. On the other hand, parallel light can provide more easily controllable input conditions for subsequent optical elements (the first light-emitting surface and the outer lens), and can be shaped more precisely, so that the outer lens projects a low-beam light pattern that meets regulatory requirements. In addition, integrating the refraction, reflection, and convergence effects of the first light beam into the first inner lens can also reduce the number of independent optical elements, which is beneficial to simplifying the structure of the headlight module and reducing costs.

[0013] In some embodiments, the first inner lens further includes a second optical interface adjacent to the first optical interface, and the light-emitting surface of the second inner lens is opposite to the second optical interface;

[0014] The second optical interface is used to receive the second light beam and project the second light beam onto the first optical interface, and the first optical interface is further used to reflect the second light beam onto the first light-emitting surface;

[0015] Along the first direction, the first light-emitting surface is configured to collimate the second light beam into parallel light and project the second light beam onto the outer lens;

[0016] Along the second direction, the first light-emitting surface is configured to converge the second light beam and project the second light beam onto the outer lens. The first direction is the width direction of the outer lens, and the second direction is the height direction of the outer lens.

[0017] Compared with the method of separately setting the optical paths for low beam and high beam, on the one hand, there are no seams on the surface of the outer lens, and the curvature of the inner surface and the outer surface is continuous, which is beneficial to improving the aesthetics of the headlight module. On the other hand, the height and width of the outer lens can be reduced, which is beneficial to reducing the opening size of the headlight module. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module on the vehicle. Furthermore, through the synergistic effect of the second optical interface and the first optical interface, the first inner lens integrates a part of the second light beam into the main optical path, which is also beneficial to simplifying the structure, improving the manufacturing efficiency, and reducing the production cost. In addition, the switching between the high beam and low beam of the headlight module does not require the introduction of a mechanical structure. Only by controlling the activation state of the light source, multiple modes such as high beam illumination, low beam illumination, and high and low beam superposition can be achieved. Therefore, it is also beneficial to improve the convenience and response speed of the high and low beam switching of the headlight module.

[0018] In some embodiments, the low beam light source includes a plurality of first light-emitting units arranged along the first direction, and the plurality of first light-emitting units are all opposite to the first optical interface;

[0019] The first reflecting surface includes a plurality of sub-reflecting surfaces arranged along the first direction, and each sub-reflecting surface is opposite to a first light-emitting unit;

[0020] The first light-emitting surface includes a plurality of first sub-light-emitting surfaces arranged along the first direction, and each first sub-light-emitting surface is opposite to a sub-reflecting surface. The first direction is the width direction of the outer lens.

[0021] With such an arrangement, on the one hand, all the light can be received, improving the light utilization efficiency. On the other hand, by flexibly setting the surface shapes of the sub-reflecting surfaces and the first sub-light-emitting surfaces, parameters such as the luminous intensity and luminous angle of the light spot pixels formed by each first light-emitting unit can be adjusted, so as to adjust the illumination distribution of the superimposed low beam light pattern, which is further beneficial to improving the illumination effect of the low beam light pattern. In addition, the mutual interference and scattering between the lights of different first light-emitting units can be reduced, thereby further reducing the light loss and improving the light efficiency.

[0022] In some embodiments, the high beam light source includes a plurality of second light emitting units arranged along a first direction. In the first direction, the plurality of first sub-light emitting surfaces located in the middle correspond to the plurality of second light emitting units one by one;

[0023] Among them, along the first direction, the two first sub-light emitting surfaces located at the head and tail are both free-form surfaces, and several of the first sub-light emitting surfaces located in the middle are symmetric surfaces.

[0024] With such an arrangement, on the one hand, the two first sub-light emitting surfaces at the head and tail can perform targeted modulation on the edges of the first light beam of the low beam, reducing the loss of the first light beam in the edge region, so that the entire low beam light pattern is more uniform in the width direction of the outer lens, improving the lighting effect. Moreover, the free-form surfaces at both ends can "stretch" the edge light rays, making the low beam light pattern remain uniform within a large angle range, and thus the lateral broadening of the low beam light pattern can also be achieved. On the other hand, it is beneficial to improve the lighting uniformity of the high beam light pattern in the first direction and the flexibility of modulation in the second direction.

[0025] In some embodiments, the first inner lens further includes a first plane adjacent to the second optical interface and a second plane connected to the first plane. The first plane is opposite to the first optical interface and is arranged at an acute angle to the second optical interface, and the second plane is perpendicular to the second direction;

[0026] At least a part of the first reflecting surface is disposed on the second plane, and a cut-off line structure is formed between the first plane and the second plane.

[0027] By providing the first plane and the second plane on the first inner lens and forming a cut-off line structure between the first plane and the second plane, compared with the prior art solutions using a light shielding plate or a mechanical structure to implement the cut-off line, on the one hand, it has higher reliability and anti-vibration ability, can ensure the stable position of the cut-off line, and thus improve the reliability of lighting. On the other hand, the number of independent optical elements such as additional light shielding plates, reflectors, etc. can be reduced, thereby reducing the volume and weight of the vehicle lamp module, and further being beneficial to reducing the cost of the vehicle lamp module and simplifying the assembly process. In addition, at least a part of the first reflecting surface is disposed on the second plane, and the second plane is a horizontal plane, which is also beneficial to improving the convenience of processing the first reflecting surface, and further facilitating the precise regulation of the first light beam.

[0028] In some embodiments, the second inner lens includes a collimating portion and a reflecting portion connected to each other. The high beam light source is disposed on one side of the collimating portion. The reflecting portion includes a second reflecting surface and a second light emitting surface, and the second light emitting surface is opposite to the second optical interface;

[0029] The collimating part is used to collimate the second light beam into parallel light and project the second light beam onto the second reflecting surface. The second reflecting surface is used to reflect the second light beam onto the second light-emitting surface. The second light-emitting surface is used to converge the reflected second light beam and project the second light beam onto the second optical interface;

[0030] The first optical interface, the second optical interface, and the second reflecting surface are all flat surfaces, and the first optical interface is parallel to the second reflecting surface.

[0031] The collimating part can reduce the divergence loss of light, which is beneficial to improving the light utilization efficiency of the second light beam. In addition, by controlling the relative position relationship between the high beam light source and the second inner lens relative to the first inner lens, the propagation direction of the second light beam after secondary reflection can be accurately controlled, so that the second light beam can be projected onto the first light-emitting surface after secondary reflection and finally projected onto the outer lens to form a high beam light pattern. Therefore, it is beneficial to improve the convenience of the optical path design of the second light beam and the accuracy of control.

[0032] In some embodiments, the outer lens is a focal line lens. The focal line of the outer lens extends along the first direction. The focal line of the outer lens is located on the first optical interface, and the focus of the light-emitting surface of the second inner lens is located on the focal line of the outer lens.

[0033] On the one hand, by setting the outer lens as a focal line lens, it is beneficial to improve the illumination uniformity of the high beam light pattern and the low beam light pattern in the first direction, and at the same time, it is beneficial to improve the convenience of modulating the low beam light pattern in the first direction. On the other hand, the outer lens is a focal line lens, its focal line is located on the first optical interface, and at the same time, the focus of the second light-emitting surface of the second inner lens is located on the focal line of the outer lens. In this way, the light of the second light beam can be received to the greatest extent, and the light scattering loss can be reduced, which is beneficial to improving the illumination effect of the high beam light pattern.

[0034] On the second hand, the embodiment of the present application provides a vehicle lamp, including the vehicle lamp module described in the first aspect. With such a setting, on the one hand, there is no seam on the surface of the outer lens, and the curvature of the inner surface and the outer surface is continuous, which is beneficial to improving the aesthetics of the vehicle lamp module and the vehicle lamp. On the other hand, the height and width of the outer lens can be reduced, which is beneficial to reducing the opening size of the vehicle lamp module. In this way, it is beneficial to improve the adaptability and application scenarios of the vehicle lamp on the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figures 1 to 7 is a schematic structural diagram of a vehicle lamp module provided by an embodiment of the present application from different perspectives;

[0036] Figures 8 to 11 is a schematic structural diagram of a first inner lens provided by an embodiment of the present application from different perspectives;

[0037] Figure 12 Schematic diagram of the optical path of the first light beam in the second direction provided by an embodiment of the present application;

[0038] Figure 13 Schematic diagram of the optical path of the first light beam in the first direction provided by an embodiment of the present application;

[0039] Figure 14 Schematic diagram of the optical path of the second light beam in the second direction provided by an embodiment of the present application;

[0040] Figure 15 Schematic diagram of the optical path of the second light beam in the first direction provided by an embodiment of the present application;

[0041] Figure 16 Simulation schematic diagram of the light intensity distribution of the low beam light pattern of the headlight module provided by an embodiment of the present application;

[0042] Figure 17 Simulation schematic diagram of the light intensity distribution of the high beam light pattern of the headlight module provided by an embodiment of the present application;

[0043] Figure 18 Simulation schematic diagram of the light intensity distribution after superimposing the high and low beams of the headlight module provided by an embodiment of the present application;

[0044] Figures 19 to 21 Schematic diagram of the structure of the second inner lens provided by an embodiment of the present application from different perspectives;

[0045] Figure 22 Schematic diagram of the structure of the outer lens provided by an embodiment of the present application.

[0046] The descriptions of the reference numerals in the figure are as follows:

[0047] 10, headlight module;

[0048] 100, low beam component;

[0049] 110, low beam light source; 111, first light emitting unit; 120, first inner lens; 121, first optical interface; 122, first reflecting surface; 1221, sub-reflecting surface; 1222, second stepped surface; 123, first light emitting surface; 1231, first sub-light emitting surface; 1232, convex portion; 1233, third stepped surface; 124, second optical interface; 125, first plane; 126, second plane; 127, cut-off line structure; 1271, intersecting line; 1272, recessed groove; 1273, first stepped surface; 128, first left side surface; 129, first right side surface; 130, first upper surface; 131, first lower surface; 1301, first sub-surface; 1302, second sub-surface 1302;

[0050] 200, High beam component;

[0051] 210, High beam light source; 211, Second light emitting unit; 220, Second inner lens; 221, Collimating part; 2211, Collimating incident surface; 2212, Collimating side incident surface; 2213, Collimating side reflecting surface; 222, Reflecting part; 2221, Second reflecting surface; 2222, Second light emitting surface; 22221, Second sub - light emitting surface; 2223, Second left side surface; 2224, Second right side surface; 2225, Front side surface; 2226, Second lower surface;

[0052] 300, Outer lens; 310, Inner surface; 320, Outer surface; 321, Micro - structure pattern; 330, Third left side surface; 340, Third right side surface; 350, Second upper surface; 360, Third lower surface. Detailed implementation mode

[0053] In order to make the purpose, technical solutions and advantages of this application clearer, the following further details this application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0054] In the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as implying or indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0056] In the description of this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated as a whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] The ultra-narrow high and low beam module can be better matched with the signal lamp, greatly enriching the styling expression of the front of the whole vehicle. Therefore, the ultra-narrow high and low beam module is widely favored by various vehicle manufacturers.

[0058] The low beam module or the high beam module is mainly composed of multiple small unit modules spliced together. Each small unit module is composed of an inner lens and an outer lens in a small reflector bowl. Different from the traditional PES (Poly-Ellipsoid System) reflection form, the function of the inner lens in the small reflector bowl is to converge the light emitted by the LED (Light Emitting Diode) into parallel light. The focus of the outer lens is generally set at the root of the small reflector bowl, and its function is to image and project the semi-circular shape of the inner lens in the small reflector bowl itself. Based on this, mixing and splicing multiple low beam small module units and multiple high beam small module units can also form a high and low beam dual-light module, realizing the integration of module functions and the compactness of spatial layout.

[0059] However, the current high and low beam dual-light module has the following several main disadvantages:

[0060] First, the outer lens is spliced by a low beam area and a high beam area. The surface curvature of the lens in the low beam area and the surface curvature of the lens in the high beam area are different, and obvious seams can be seen on the whole outer lens, resulting in poor aesthetics.

[0061] Second, although the high and low beams share the outer lens, in essence, a high beam sub-outer lens and a low beam sub-outer lens are integrated on the outer lens, and the opening size of the outer lens is still large, resulting in that the high and low beam dual-light module cannot meet the design requirements of an ultra-narrow opening, thus affecting the application and development of the high and low beam dual-light module on vehicles.

[0062] The applicant has found through in-depth research that the essential reason for the too large opening size of the outer lens of the above high and low beam dual-light module is that the high beam optical path and the low beam optical path are two relatively independent optical paths, and the two respectively occupy a certain space. Therefore, after the high beam is emitted, a high beam outer lens is needed to project it into a high beam light pattern, and after the low beam is emitted, a low beam outer lens is needed to project it into a low beam light pattern.

[0063] Accordingly, the applicant has proposed the technical solution of the embodiment of the present application. Specifically, the headlight module of the embodiment of the present application includes a low-beam component, a high-beam component, and an outer lens. The low-beam component includes a low-beam light source and a first inner lens, and the low-beam light source is used to provide a first light beam to the first inner lens; the high-beam component includes a high-beam light source and a second inner lens, and the high-beam light source is used to provide a second light beam to the second inner lens. The outer lens is disposed on the light-emitting optical path of the first inner lens; wherein, the first inner lens is used to reflect the first light beam to the outer lens so that the outer lens projects a low-beam light pattern, and the second inner lens is used to project the second light beam into the first inner lens. The first inner lens is further used to reflect the second light beam to the outer lens so that the outer lens projects a high-beam light pattern.

[0064] In the present application, the optical paths of the first light beam for low beam and the second light beam for high beam are shared within the first inner lens, and finally both are emitted to the outer lens through the same light-emitting surface of the first inner lens. Only a single light-condensing area can be provided on the outer lens, and there is no need to form a high-beam area and a low-beam area by splicing. With such a setting, on the one hand, there is no seam on the surface of the outer lens, and the curvature of the inner surface and the outer surface is continuous, which is beneficial to improving the aesthetics of the headlight module. On the other hand, the height and width of the outer lens can be reduced, which is beneficial to reducing the opening size of the headlight module. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module on the vehicle.

[0065] The above is the core idea of the present application. Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0066] As Figures 1 to 6 shown, an embodiment of the first aspect of the present application proposes a headlight module 10. The headlight module 10 includes a low-beam component 100, a high-beam component 200, and an outer lens 300. The low-beam component 100 includes a low-beam light source 110 and a first inner lens 120. The low-beam light source 110 is used to provide a first light beam A to the first inner lens 120. The high-beam component 200 includes a high-beam light source 210 and a second inner lens 220. The high-beam light source 210 is used to provide a second light beam B to the second inner lens 220. The outer lens 300 is disposed on the light-emitting optical path of the first inner lens 120.

[0067] As Figure 7As shown, the first inner lens 120 is configured to reflect the first light beam A to the outer lens 300, so that the outer lens 300 projects a low beam light pattern. The second inner lens 220 is configured to project the second light beam B into the first inner lens 120. The first inner lens 120 is further configured to reflect the second light beam B to the outer lens 300, so that the outer lens 300 projects a high beam light pattern.

[0068] In this application, the low beam light source 110 is configured to emit the first light beam A. The low beam light source 110 may include at least one first light emitting unit 111, and the visible light emitted by all the first light emitting units 111 is superimposed to form the first light beam A. Optionally, the first light emitting unit 111 may be an LED (Light Emitting Diode) chip, and the light emitted by the LED chip is Lambertian divergent light.

[0069] The first inner lens 120 is disposed on the optical path on the light emitting side of the low beam light source 110. The specific way for the headlight module 10 to achieve the low beam is that the first light beam A of the low beam light source 110 is incident into the first inner lens 120. The first inner lens 120 reflects and emits the first light beam A, and projects it to the outer lens 300, so as to project a low beam light pattern in the far field of the outer lens 300.

[0070] The high beam light source 210 is configured to emit the second light beam B. The high beam light source 210 may include at least one second light emitting unit 211, and the visible light emitted by all the second light emitting units 211 is superimposed to form the second light beam B. Optionally, the second light emitting unit 211 may be an LED chip.

[0071] The second inner lens 220 is disposed on the optical path on the light emitting side of the high beam light source 210. The second inner lens 220 can initially converge the second light beam B and project the converged second light beam B into the first inner lens 120. That is to say, the light emitting surface of the second inner lens 220 faces the first inner lens 120. The first inner lens 120 can not only receive the first light beam A of the low beam light source 110, but also receive the second light beam B of the high beam light source 210.

[0072] The specific way for the headlight module 10 to achieve the high beam is that the second light beam B of the high beam light source 210 is incident into the second inner lens 220. The second inner lens 220 converges and emits the second light beam B, and projects it into the first inner lens 120. Then, the first inner lens 120 reflects and emits the second light beam B, and projects it to the outer lens 300, so as to project a high beam light pattern in the far field of the outer lens 300.

[0073] Based on the above process, it can be known that in the present application, after the first light beam A of the low beam light source 110 passes through the first inner lens 120 and the outer lens 300 in sequence and exits, a low beam light pattern is formed. And the second light beam B of the high beam light source 210 first converges through the second inner lens 220 and then exits into the first inner lens 120, and then passes through the first inner lens 120 and the outer lens 300 and exits, forming a high beam light pattern. That is, in the embodiment of the present application, the first light beam A of the low beam and the second light beam B of the high beam share the optical path within the first inner lens 120, and finally both exit from the same light exit surface of the first inner lens 120 to the outer lens 300. Only a single light condensing area can be provided on the outer lens 300, and there is no need to form a high beam area and a low beam area by splicing. With such a setting, on the one hand, there is no seam on the surface of the outer lens 300, and the curvature of the inner surface 310 and the outer surface 320 is continuous, which is beneficial to improving the aesthetics of the headlight module 10. On the other hand, the height and width of the outer lens 300 can be reduced, which is beneficial to reducing the opening size of the headlight module 10. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module 10 on the vehicle.

[0074] In some embodiments, the height of the outer lens 300 is less than or equal to 15 mm, and / or the width of the outer lens 300 is less than or equal to 50 mm.

[0075] As can be seen from the foregoing, the first light beam A of the low beam and the second light beam B of the high beam share the optical path within the first inner lens 120. Only a single light condensing area can be provided on the outer lens 300, and there is no need to form a high beam area and a low beam area by splicing on the left and right sides and / or the upper and lower sides. Therefore, the outer lens 300 of the entire headlight module 10 is not only ultra-narrow in the opening height, but also can be ultra-narrow in the opening width. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module 10 on the vehicle.

[0076] Optionally, the height of the outer lens 300 can be 15 mm, 14.5 mm, 14 mm, 13.5 mm, 13 mm, 12.5 mm, 12 mm, 11.5 mm, 11 mm, 10.5 mm, 10 mm, etc., and can be flexibly designed according to the actual situation.

[0077] Optionally, the height of the outer lens 300 can be 50 mm, 49.5 mm, 49 mm, 48.5 mm, 48 mm, 47.5 mm, 47 mm, 46.5 mm, 46 mm, 45.5 mm, 45 mm, 44.5 mm, 44 mm, 43.5 mm, 43 mm, 42.5 mm, 42 mm, 41.5 mm, 41 mm, 40.5 mm, 40 mm, etc., and can be flexibly designed according to the actual situation.

[0078] In some embodiments, such as Figures 7 to 13As shown, the first inner lens 120 includes a first optical interface 121, a first reflective surface 122 opposite to the first optical interface 121, and a first light-emitting surface 123 arranged on the reflected light path of the first reflective surface 122. The low beam light source 110 is arranged on one side of the first optical interface 121. The first optical interface 121 is used to receive the first light beam A and project the first light beam A to the first reflective surface 122. The first reflective surface 122 is used to reflect the first light beam A into parallel light and project the first light beam A to the first light-emitting surface 123. The first light-emitting surface 123 is used to converge the first light beam A and project the first light beam A to the outer lens 300.

[0079] This embodiment proposes a specific structure for realizing low beam of the vehicle lamp module 10. The first optical interface 121 can be one of the light incident outer surfaces of the first inner lens 120. The first light beam A of the low beam light source 110 enters the first inner lens 120 through the refraction of the first optical interface 121, and then is incident on the first reflective surface 122. The first reflective surface 122 reflects the first light beam A into parallel light and projects it to the first light emitting surface 123. Finally, the first light emitting surface 123 converges the light and projects it to the outer lens 300, thereby forming a low beam light pattern in the far field projection of the outer lens 300.

[0080] The first reflective surface 122 plays the role of parallelizing and converging the first light beam A, which can reduce light loss and improve light efficiency. On the other hand, the parallel light can provide easier-to-control input conditions for subsequent optical elements (the first light-emitting surface 123 and the outer lens 300), and can be shaped more accurately so that the outer lens 300 projects a low-beam light type that meets regulatory requirements. In addition, integrating the refraction, reflection and convergence of the first light beam A into the first inner lens 120 can also reduce the number of independent optical elements, thereby simplifying the structure of the headlight module 10 and reducing costs.

[0081] It should be noted that parallel light refers to a light beam that maintains a consistent direction during propagation after reflection, without divergence or convergence, and the divergence angle is 0°. However, in practice, due to installation errors, processing errors, etc., it may not be possible to achieve complete parallelism. Therefore, light with extremely small divergence angles, such as light beams with divergence angles less than or equal to 5°, 4°, 3°, 2°, 1°, etc., can be approximately regarded as parallel light.

[0082] Optionally, the first reflective surface 122 may be a curved surface convex toward the side away from the first optical interface 121, such as a parabolic curved surface, a spherical surface, etc., and may be flexibly set according to actual conditions.

[0083] In some embodiments, Figure 7 , Figure 8 , Figure 14 and Figure 15As shown, the first inner lens 120 further includes a second optical interface 124 adjacent to the first optical interface 121. The light-emitting surface of the second inner lens 220 faces the second optical interface 124. The second optical interface 124 is configured to receive the second light beam B and project the second light beam B onto the first optical interface 121. The first optical interface 121 is further configured to reflect the second light beam B to the first light-emitting surface 123. Along the first direction X, the first light-emitting surface 123 is configured to collimate the second light beam B into parallel light and project the second light beam B onto the outer lens 300; along the second direction Z, the first light-emitting surface 123 is configured to converge the second light beam B and project the second light beam B onto the outer lens 300. The first direction X is the width direction of the outer lens 300, and the second direction Z is the height direction of the outer lens 300.

[0084] This embodiment proposes a specific structure for the headlight module 10 to achieve the high beam function. The first inner lens 120 further includes a second optical interface 124, and the second optical interface 124 is another light-incident outer surface of the first inner lens 120. After the second light beam B of the high beam light source 210 is emitted from the light-emitting surface of the second inner lens 220, it is incident on the second optical interface 124, and then the second light beam B enters the interior of the first inner lens 120. Since the second optical interface 124 is adjacent to the first optical interface 121, the second light beam B will be incident on the first optical interface 121 inside the first inner lens 120. After that, the first optical interface 121 totally reflects the second light beam B, and the reflected second light beam B is incident on the first light-emitting surface 123 and is emitted from the first light-emitting surface 123 to the outer lens 300, thereby forming a high beam light pattern in the far field of the outer lens 300.

[0085] In this embodiment, the second optical interface 124 is configured to receive the second light beam B emitted from the light-emitting surface of the second inner lens 220. It can be understood that the second light beam B is incident on the first optical interface 121 inside the first inner lens 120, while the first light beam A is directly incident on the first optical interface 121 from the outside. Therefore, the first optical interface 121 has two functions: First, the first optical interface 121 serves as a refracting surface to refract the first light beam A onto the first reflecting surface 122; Second, the first optical interface 121 serves as a reflecting surface to reflect the second light beam B from the inside of the first inner lens 120 to the first light-emitting surface 123. Thus, the optical path integration of the low beam light beam and the high beam light beam in the first inner lens 120 can be achieved, and they are emitted to the outer lens 300 through the same light-emitting surface.

[0086] Compared with the method of separately setting the optical paths for low beam and high beam, on the one hand, there are no seams on the surface of the outer lens 300, and the curvature of the inner surface 310 and the outer surface 320 is continuous, which is beneficial to improving the aesthetics of the headlight module 10. On the other hand, the height and width of the outer lens 300 can be reduced, which is beneficial to reducing the opening size of the headlight module 10. In this way, it is beneficial to improve the adaptability and application scenarios of the headlight module 10 on the vehicle. Furthermore, through the synergistic effect of the second optical interface 124 and the first optical interface 121, the first inner lens 120 integrates a part of the second light beam B into the main optical path, which is also beneficial to simplifying the structure, improving the production efficiency, and reducing the production cost.

[0087] In addition, there are also differences in the modulation methods of the first light-emitting surface 123 for the second light beam B in the first direction X and the second direction Z. In the first direction X, the first light-emitting surface 123 collimates the second light beam B into parallel light, ensuring that the second light beam B is evenly distributed in the width direction, expanding the lateral illumination range of the high beam, and thus being beneficial to enhancing the lighting effect on the road conditions on both sides in the distance. In the second direction Z, the first light-emitting surface 123 converges the second light beam B, and the second light beam B can be concentrated and projected onto the road surface in the distance, which is beneficial to enhancing the long-distance light intensity and meeting the high beam lighting requirements.

[0088] Furthermore, the switching between the high beam and low beam of the headlight module 10 does not require the introduction of a mechanical structure. Only by controlling the activation state of the light source, multiple modes such as high beam illumination, low beam illumination, and high and low beam superposition can be achieved. Therefore, it is also beneficial to improve the convenience and response speed of the high and low beam switching of the headlight module 10.

[0089] In some embodiments, as Figure 2 , Figure 3 , Figure 8 and Figure 13 shown, the low beam light source 110 includes a plurality of first light-emitting units 111 arranged along the first direction X. The plurality of first light-emitting units 111 are all opposite to the first optical interface 121. The first reflecting surface 122 includes a plurality of sub-reflecting surfaces 1221 arranged along the first direction X. Each sub-reflecting surface 1221 is opposite to a first light-emitting unit 111. The first light-emitting surface 123 includes a plurality of first sub-light-emitting surfaces 1231 arranged along the first direction X. Each first sub-light-emitting surface 1231 is opposite to a sub-reflecting surface 1221. The first direction X is the width direction of the outer lens 300.

[0090] In this embodiment, the low beam light source 110 includes a plurality of first light emitting units 111 arranged along the first direction X. That is, the first light beam A is composed of sub-beams of the plurality of first light emitting units 111. After the sub-beams of each first light emitting unit 111 are refracted by the first optical interface 121, reflected by the sub-reflection surface 1221, and converged by the first sub-light emitting surface 1231, a single spot pixel is formed in the far field of the outer lens 300. In this way, the spots formed by the plurality of first light emitting units 111 are superimposed on each other, and the low beam light pattern in the far field can be formed.

[0091] In this embodiment, the plurality of first light emitting units 111 are all opposite to the first optical interface 121, so that all the light rays can be received, improving the light utilization efficiency. Secondly, the light rays of each first light emitting unit 111 correspond to a sub-reflection surface 1221 and a first sub-light emitting surface 1231 for modulation. By flexibly setting the surface shapes of the sub-reflection surface 1221 and the first sub-light emitting surface 1231, parameters such as the luminous intensity and luminous angle of the spot pixel formed by each first light emitting unit 111 can be adjusted, thereby adjusting the illumination distribution of the superimposed low beam light pattern, and further facilitating the improvement of the illumination effect of the low beam light pattern. Moreover, the mutual interference and scattering between the light rays of different first light emitting units 111 can also be reduced, thereby further reducing light loss and improving the light efficiency.

[0092] In some embodiments, such as Figure 2 , Figure 3 , Figure 8 and Figure 15 shown, the high beam light source 210 includes a plurality of second light emitting units 211 arranged along the first direction. In the first direction X, a plurality of first sub-light emitting surfaces 1231 located in the middle correspond to the plurality of second light emitting units 211 one by one. Among them, along the first direction X, the two first sub-light emitting surfaces 1231 located at the head and tail are both free-form surfaces, and several first sub-light emitting surfaces 1231 located in the middle are all symmetric surfaces.

[0093] This embodiment proposes the surface shape distribution of the plurality of first sub-light emitting surfaces 1231. Among them, each first sub-light emitting surface 1231 is opposite to a first light emitting unit 111, and the plurality of second light emitting units 211 only correspond to the plurality of first sub-light emitting surfaces 1231 in the middle one by one. Along the first direction X, the two first sub-light emitting surfaces 1231 located at the head and tail are both free-form surfaces. A free-form surface is a complex surface that does not follow traditional geometric shapes such as spherical surfaces, cylindrical surfaces, and conical surfaces. Generally, it refers to an optical surface that does not have rotational symmetry about an axis or translational symmetry constraints, and it has more design freedoms and can precisely modulate light rays.

[0094] With such a configuration, the two first sub-light emitting surfaces 1231 at the head and tail can be modulated specifically for the edge of the first light beam A of the low beam, reducing the loss of the first light beam A in the edge area, thereby making the entire low beam pattern more uniform in the width direction (first direction X) of the outer lens 300, and improving the lighting effect. In addition, the free-form surfaces at the head and tail ends can "stretch" the edge light, so that the low beam pattern remains uniform within a large angle range, thereby also achieving lateral widening of the low beam pattern.

[0095] Furthermore, the plurality of first sub-light emitting surfaces 1231 located in the middle are all symmetrical curved surfaces, and the plurality of first sub-light emitting surfaces 1231 correspond one-to-one to the plurality of second light emitting units 211. When the second light beam B is reflected from the first optical interface 121 to the plurality of first sub-light emitting surfaces 1231, the first sub-light emitting surfaces 1231 can collimate the second light beam B in the first direction X and flexibly converge the second light beam B in the second direction Z. This is conducive to improving the illumination uniformity of the high beam light pattern in the first direction X and the flexibility of modulation in the second direction Z.

[0096] In some embodiments, Figure 8 As shown, the sub-reflective surfaces 1221 are all curved surfaces convex toward the side away from the first optical interface 121, such as parabolic surfaces or spherical surfaces, which is beneficial to improve the light utilization rate of the first light-emitting unit 111 and further improve the lighting effect of the low beam type.

[0097] In some embodiments, Figure 7 and Figure 8 As shown, the first inner lens 120 further includes an outer convex portion 1232 disposed on each of the first sub-light emitting surfaces 1231, and the surface of the outer convex portion 1232 is a convex curved surface. The outer convex portion 1232 can further adjust the first light beam A so that the emitted low beam light type meets the requirements of low beam zone III. That is, the outer convex portion 1232 is used to achieve zone III adjustment of the low beam light type. Optionally, the surface of the outer convex portion 1232 can be a convex free-form surface, thereby improving the accuracy of light adjustment.

[0098] In some embodiments, Figure 7 As shown, the second optical interface 124 is arranged at an acute angle with the first optical interface 121. In this way, it can be ensured that after the second light beam B passes through the second optical interface 124, it can be projected onto the first optical interface 121, so that the first optical interface 121 reflects the second light beam B, which is beneficial to improve the light utilization rate of the second light beam B and improve the light effect.

[0099] In some embodiments, Figures 8 to 11As shown, the first inner lens 120 further includes a first plane 125 adjacent to the second optical interface 124 and a second plane 126 connected to the first plane 125. The first plane 125 is opposite to the first optical interface 121 and is arranged at an acute angle to the second optical interface 124. The second plane 126 is perpendicular to the second direction Z. At least part of the first reflecting surface 122 is arranged on the second plane 126. A cut-off line structure 127 is formed between the first plane 125 and the second plane 126.

[0100] In this embodiment, the first inner lens 120 further includes a first plane 125 and a second plane 126. When observed from the first direction X, the first plane 125 is an inclined side plane, and the second plane 126 is a horizontal plane. And the second plane 126 is located below the second optical interface 124 along the second direction Z. That is to say, the first plane 125 and the second plane 126 together form a recessed chamber at the top of the first inner lens 120, and the recessed chamber is convenient for arranging a plurality of sub-reflecting surfaces 1221.

[0101] A cut-off line structure 127 is formed between the first plane 125 and the second plane 126, and the cut-off line structure 127 can precisely cut the propagation paths of the first light beam A and the second light beam B. Specifically, taking the first light beam A as an example, as Figure 12 shown, after the first light beam A is refracted by the first optical interface 121, part of the light rays pass through the second plane 126 and then directly enter the first reflecting surface 122, and then are reflected by the first reflecting surface 122 into parallel light. Finally, after being modulated by the first light-emitting surface 123 and the outer lens 300, a low beam is projected in the far field; and there is also a part that is reflected or blocked by the cut-off line structure 127 between the first plane 125 and the second plane 126, so as to form a clear cut-off line at a specific position in the far field of the outer lens 300, avoiding the upward divergence of the first light beam A, and thus effectively preventing the oncoming vehicle driver from being dazzled. Similarly, part of the light rays of the second light beam B will also be blocked by the cut-off line structure 127, so as to form an anti-cut-off line shape with a lower left and a higher right in the far field light pattern of the outer lens 300. In this way, the far field light pattern can more easily meet the regulatory requirements.

[0102] In this embodiment, a first plane 125 and a second plane 126 are provided on the first inner lens 120, and a cut-off line structure 127 is formed between the first plane 125 and the second plane 126. Compared with the solutions using light shields or mechanical structures to achieve the cut-off line in the related art, on the one hand, it has higher reliability and anti-vibration ability, which can ensure the stable position of the cut-off line, thereby improving the reliability of lighting. On the other hand, the number of independent optical elements such as additional light shields, reflectors, etc. can be reduced, thereby reducing the volume and weight of the headlight module 10, and further facilitating the reduction of the cost of the headlight module 10 and simplifying the assembly process. In addition, at least a part of the first reflecting surface 122 is disposed on the second plane 126, and the second plane 126 is a horizontal plane, which is also beneficial to improving the processing convenience of the first reflecting surface 122, and further facilitating the precise regulation of the first light beam A.

[0103] Optionally, in some embodiments, as Figure 8 and Figure 9 shown, the cut-off line structure 127 includes an intersection line 1271 between the first plane 125 and the second plane 126 and a plurality of recessed grooves 1272 arranged along the first direction X on the first plane 125 and the second plane 126. The recessed grooves 1272 will form a first stepped surface 1273 with the first plane 125 and the second plane 126. The first stepped surface 1273 is mainly used to make the low beam light pattern present a KINK area on the right side of the cut-off line. With the cooperation of the intersection line 1271 and the recessed grooves 1272, the finally projected low beam light pattern of the first light beam A has a cut-off line shape with a lower left side and a higher right side.

[0104] It should be noted that the above only exemplarily lists one design method of the cut-off line structure 127, and it is not a limitation on the specific structure or shape of the cut-off line structure 127. It can be flexibly designed according to the actual situation.

[0105] As Figure 16 shown, Figure 16 is a simulation schematic diagram of the light intensity distribution of the low beam light pattern of the headlight module 10 according to the embodiment of the present application. The low beam light pattern of the headlight module 10 according to the embodiment of the present application has an obvious cut-off line shape and meets the relevant national standards.

[0106] As Figure 17 shown, Figure 17 is a simulation schematic diagram of the light intensity distribution of the high beam light pattern of the headlight module 10 according to the embodiment of the present application. The high beam light pattern of the headlight module 10 according to the embodiment of the present application meets the relevant national standards, and the high beam light pattern has an anti-cut-off line shape with a lower left side and a higher right side.

[0107] As Figure 18 shown, Figure 18This is a simulation schematic diagram of the light intensity distribution after the combination of the low beam and high beam of the headlight module 10 according to the embodiments of the present application. In the headlight module 10 according to the embodiments of the present application, the low beam and the high beam can be perfectly spliced together to form a dual beam.

[0108] In some embodiments, such as Figure 8 , Figure 9 and Figure 10 shown, since a plurality of recessed grooves 1272 are arranged along the first direction X on the first plane 125 and the second plane 126, and at least a part of the first reflecting surface 122 is arranged on the second plane 126. Therefore, the height of the sub-reflecting surface 1221 opposite to the recessed groove 1272 is lower than the height of other sub-reflecting surfaces 1221. In this case, as Figure 8 and Figure 10 shown, a second stepped surface 1222 will be formed between the sub-reflecting surface 1221 with a lower height and the sub-reflecting surface 1221 with a higher height. Optionally, at least a part of the second stepped surface 1222 and the first stepped surface 1273 are in the same plane.

[0109] In some embodiments, the distance between the light-emitting surface of the first light-emitting unit 111 and the first optical interface 121 is greater than 1 mm, for example, it can be 1.1 mm, 1.2 mm, 1.3 mm, etc., thereby improving the heat dissipation effect of the headlight module 10 and reducing the probability of deformation of the first inner lens 120 due to heat.

[0110] In some embodiments, the width of each sub-reflecting surface 1221 along the first direction X is less than 16 mm, and the height along the second direction Z is less than 15 mm. Thus, it is beneficial to reduce the volume of the first inner lens 120, and further beneficial to further meet the requirement of miniaturizing the opening size of the headlight module 10.

[0111] In some embodiments, such as Figure 8 shown, since along the first direction X, the two first sub-light-emitting surfaces 1231 at the head and the tail are free-form surfaces, and the first sub-light-emitting surfaces 1231 in the middle are symmetric surfaces, therefore, a third stepped surface 1233 will be formed between the free-form surface and the symmetric surface. A texture structure is provided on the third stepped surface 1233, so as to eliminate the stray light transmitted through the third stepped surface 1233 and improve the light pattern quality.

[0112] In some embodiments, such as Figure 9 and Figure 11As shown, the first inner lens 120 further includes a first left side surface 128 and a first right side surface 129 that are oppositely arranged along the first direction X, and a first upper surface 130 and a first lower surface 131 that are oppositely arranged along the second direction Z. The first left side surface 128, the first right side surface 129, the first upper surface 130, and the first lower surface 131 are all provided with a leather grain structure, so that stray light can be further eliminated and the light pattern quality can be improved. Optionally, in order to improve the convenience of connecting the first upper surface 130 and the first reflecting surface 122, the first upper surface 130 includes a first sub-surface 1301 extending along the first direction X and a second sub-surface 1302 connected to the first sub-surface 1301 and forming an angle.

[0113] In some embodiments, as Figures 19 to 21 shown and referring to Figure 7 , the second inner lens 220 includes a collimating portion 221 and a reflecting portion 222 that are connected to each other. The high beam light source 210 is disposed on one side of the collimating portion 221. The reflecting portion 222 includes a second reflecting surface 2221 and a second light-emitting surface 2222. The second light-emitting surface 2222 faces the second optical interface 124. The collimating portion 221 is configured to collimate the second light beam B into parallel light and project the second light beam B onto the second reflecting surface 2221. The second reflecting surface 2221 is configured to reflect the second light beam B to the second light-emitting surface 2222. The second light-emitting surface 2222 is configured to converge the reflected second light beam B and project the second light beam B onto the second optical interface 124. The first optical interface 121, the second optical interface 124, and the first reflecting surface 122 are all flat surfaces, and the first optical interface 121 is parallel to the second reflecting surface 2221.

[0114] This embodiment presents the specific structure of the second inner lens 220. Among them, the collimating portion 221 can collimate the second light beam B of the high beam light source 210 into parallel light and project the parallel light onto the second reflecting surface 2221. The collimating portion 221 can reduce the divergence loss of light, which is beneficial to improving the light utilization efficiency of the second light beam B.

[0115] Further, the second reflecting surface 2221 totally reflects the second light beam B, and the reflected light is incident on the second light-emitting surface 2222. After the second light beam B converges on the second light-emitting surface 2222, it enters the first optical interface 121 of the first inner lens 120 through the second optical interface 124, so that the first optical interface 121 totally reflects the second light beam B again. As Figure 7As shown, since the first optical interface 121, the second optical interface 124, and the second reflecting surface 2221 are all planar, and the first optical interface 121 is parallel to the second reflecting surface 2221. Therefore, after the parallel second light beam B emitted by the collimating portion 221 is reflected once by the first reflecting surface 122 and twice by the first optical interface 121, its propagation direction remains unchanged. In this way, by controlling the relative position relationship between the high beam light source 210 and the second inner lens 220 with respect to the first inner lens 120, the propagation direction of the second light beam B after double reflection can be accurately controlled, so that the second light beam B can be projected onto the first light-emitting surface 123 after double reflection and finally projected onto the outer lens 300 to form a high beam light pattern. Thus, it is beneficial to improve the convenience of the optical path design and the accuracy of control of the second light beam B.

[0116] In some embodiments, as Figures 19 to 21 shown, the collimating portion 221 includes a collimating incident surface 2211, a collimating side incident surface 2212, and a collimating side reflecting surface 2213. The collimating incident surface 2211 and the collimating side incident surface 2212 introduce the light of the second light-emitting unit 211 into the collimating portion 221, and then the collimating side reflecting surface 2213 reflects the light of the second light-emitting unit 211 into parallel light. Optionally, the collimating incident surface 2211 is a curved surface convex toward the second light-emitting unit 211, and the collimating side reflecting surface 2213 can be a planar surface or a curved surface, and the present application does not limit this.

[0117] In some embodiments, as Figures 19 to 21 shown, the included angles between the second reflecting surface 2221 and the first optical interface 121 and the second direction Z are both 60°, and the light-emitting surface of the second light-emitting unit 211 is parallel to the XZ plane.

[0118] In some embodiments, as Figures 19 to 21 shown, the second light-emitting surface 2222 includes a plurality of second sub-light-emitting surfaces 22221 opposite to the second light-emitting unit 211. Thus, each second sub-light-emitting surface 22221 can control the spot convergence of one second light-emitting unit 211, which is beneficial to realizing the high beam adaptive anti-glare function (ADB, Advanced Driving Beam).

[0119] In some embodiments, as Figures 19 to 21 shown, the reflecting portion 222 further includes a second left side surface 2223 and a second right side surface 2224 oppositely arranged along the first direction X, a front side surface 2225 connected to the collimating portion 221, and a second lower surface 2226 opposite to the second reflecting surface 2221. The second left side surface 2223, the second right side surface 2224, the front side surface 2225, and the second lower surface 2226 are all provided with a leather grain structure, which is beneficial to reducing the stray light of the second inner lens 220 and improving the high beam quality.

[0120] In some embodiments, as Figure 14 and Figure 15 shown, the outer lens 300 is a focal line lens. The focal line of the outer lens 300 extends along the first direction X and is located on the first optical interface 121. The focus of the light-emitting surface of the second inner lens 220, i.e., the second light-emitting surface 2222, is located on the focal line of the outer lens 300.

[0121] In this embodiment, the outer lens 300 is a focal line lens, which does not converge light in the first direction X and only converges light in the second direction Z.

[0122] The following specifically describes the optical path propagation modes of the first light beam A of the low beam and the second light beam B of the high beam in the headlight module 10:

[0123] For the first light beam A of the low beam:

[0124] As Figure 12 shown, in the second direction Z, the first light beam A emitted by the low beam light source 110 first enters the first inner lens 120 through the first optical interface 121, and then is reflected by the first reflecting surface 122 to form a collimated parallel light beam. This parallel light further passes through the first light-emitting surface 123, the inner surface 310 and the outer surface 320 of the outer lens 300 and is refracted and projected into the distance. When observed from the first direction X, the projection of the first light-emitting surface 123 is arc-shaped.

[0125] As Figure 13 shown, in the first direction X, the first light beam A emitted by the low beam light source 110 first enters the first inner lens 120 through the first optical interface 121, and then is reflected by the first reflecting surface 122 to form a collimated parallel light beam. This parallel light is further converged by the first light-emitting surface 123, and then is projected into the distance through the non-converging outer lens 300.

[0126] For the second light beam B of the high beam:

[0127] As Figure 14 shown, in the second direction Z, the second light beam B emitted by the high beam light source 210 is first converged into a parallel light by the collimating portion 221, and then the parallel light is incident on the second reflecting surface 2221 for total reflection to deflect the propagation direction. The reflected light converges when it encounters the second light-emitting surface 2222. Its converging light enters the first inner lens 120 from the second optical interface 124 at the root of the first inner lens 120, and its converging point is directly below the cut-off line structure 127. The light converging into the first inner lens 120 is totally reflected and turned by the first optical interface 121 and propagates towards the first light-emitting surface 123 of the first inner lens 120. Finally, it passes through the first light-emitting surface 123, the inner surface 310 and the outer surface 320 of the outer lens 300 and is refracted and converged and projected into the distance.

[0128] As shown Figure 15 in FIG. 1, in the first direction X, the second light beam B emitted by the high beam light source 210 first passes through the collimating portion 221 and converges into parallel light. The parallel light converges through the second light-emitting surface 2222 and enters the first inner lens 120, and its convergence point is directly below the cut-off line structure 127. The converged light further converges into parallel light through the first light-emitting surface 123, and then is projected into the distance through the outer lens 300 that does not play a converging role.

[0129] In this embodiment, on the one hand, by setting the outer lens 300 as a focal line lens, it is beneficial to improve the illumination uniformity of the high beam light pattern and the low beam light pattern in the first direction X, and at the same time, it is beneficial to improve the convenience of modulating the low beam light pattern in the first direction X. On the other hand, the outer lens 300 is a focal line lens, its focal line is located on the first optical interface 121, and at the same time, the focus of the second light-emitting surface 2222 of the second inner lens 220 is located on the focal line of the outer lens 300. In this way, the light rays of the second light beam B can be received to the greatest extent, reducing the light scattering loss, and thus being beneficial to improving the illumination effect of the high beam light pattern.

[0130] In some embodiments, as shown Figure 8 and Figure 14 in FIG. 2, the focal line of the outer lens 300 is located on the first optical interface 121 and on one side of the intersection line 1271 of the cut-off line structure 127 in the second direction Z, that is, the focal line of the outer lens 300 is directly below the intersection line 1271. Further, the outer lens 300 and a plurality of first sub-light-emitting surfaces 1231 form a lens group. Among them, along the first direction X, the outer lens 300 and the first and last first sub-light-emitting surfaces 1231 form a focal line lens group with a focal line shorter than that of the outer lens 300, and the outer lens 300 and several intermediate first sub-light-emitting surfaces 1231 form a focus lens group. The short focal line of the focal line lens group and the focus of the focus lens group are both located on the focal line of the outer lens 300.

[0131] In some embodiments, the materials of the first inner lens 120, the second inner lens 220, and the outer lens 300 can be polycarbonate (PC) materials, thereby being beneficial to reducing the manufacturing cost of the vehicle lamp module 10.

[0132] In some embodiments, as shown Figure 22 in FIG. 3, the outer lens 300 includes an inner surface 310 close to the first inner lens 120 and an outer surface 320 far from the first inner lens 120. Among them, at least one of the inner surface 310 and the outer surface 320 is a curved surface. Thereby, it is beneficial to improve the convenience of processing and manufacturing the outer lens 300.

[0133] In some embodiments, as shown Figure 22As shown, the outer surface 320 of the outer lens 300 is provided with a microstructure pattern 321, which serves to weaken the sharpness of the cut-off line of the low beam and evenly distribute the light. The shape of each small pattern can be a rhombus, a rectangle, a polygon, etc. The pattern can protrude outward or inward, and the length of the side of a single pattern is less than 2 mm.

[0134] In some embodiments, as Figure 22 shown, the outer lens 300 further includes a third left side surface 330 and a third right side surface 340 oppositely arranged along the first direction X, and a second upper surface 350 and a third lower surface 360 oppositely arranged along the second direction Z. The third left side surface 330, the third right side surface 340, the second upper surface 350 and the third lower surface 360 are all provided with a leather grain structure, which is beneficial to reducing stray light and improving the light pattern quality.

[0135] An embodiment of the second aspect of the present application provides a vehicle lamp, including the vehicle lamp module 10 described in the first aspect. With such a setting, on the one hand, there is no seam on the surface of the outer lens 300, and the curvature of the inner surface 310 and the outer surface 320 is continuous, which is beneficial to improving the aesthetics of the vehicle lamp module 10 and the vehicle lamp. On the other hand, the height and width of the outer lens 300 can be reduced, which is beneficial to reducing the opening size of the vehicle lamp module 10. In this way, it is beneficial to improve the adaptability and application scenarios of the vehicle lamp on the vehicle.

[0136] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vehicle light module, characterized in that: include: A low beam assembly, comprising a low beam light source and a first inner lens, wherein the low beam light source is used to provide a first light beam to the first inner lens; a high beam assembly, comprising a high beam light source and a second inner lens, wherein the high beam light source is used to provide a second light beam to the second inner lens; and An outer lens, arranged on the light-emitting path of the first inner lens; Among them, the first inner lens is used to reflect the first light beam to the outer lens so that the outer lens projects a low beam light type, the second inner lens is used to project the second light beam into the first inner lens, and the first inner lens is also used to reflect the second light beam to the outer lens so that the outer lens projects a high beam light type.

2. The vehicle light module according to claim 1, characterized in that: The height of the outer lens is less than or equal to 15 mm; And / or, the width of the outer lens is less than or equal to 50 mm.

3. The vehicle light module according to claim 1, characterized in that: The first inner lens comprises a first optical interface, a first reflection surface opposite to the first optical interface, and a first light emitting surface arranged on the reflection light path of the first reflection surface, and the low beam light source is arranged on one side of the first optical interface; The first optical interface is used to receive the first light beam and project the first light beam to the first reflecting surface, the first reflecting surface is used to reflect the first light beam into parallel light and project the first light beam to the first light emitting surface, and the first light emitting surface is used to converge the first light beam and project the first light beam to the external lens.

4. The vehicle light module according to claim 3, characterized in that: The first inner lens further comprises a second optical interface adjacent to the first optical interface, and a light exiting surface of the second inner lens is opposite to the second optical interface; The second optical interface is used to receive the second light beam and project the second light beam to the first optical interface, and the first optical interface is also used to reflect the second light beam to the first light exit surface; Along a first direction, the first light emitting surface is used to collimate the second light beam into parallel light and project the second light beam to the outer lens; Along the second direction, the first light emitting surface is used to converge the second light beam and project the second light beam to the outer lens. The first direction is the width direction of the outer lens, and the second direction is the height direction of the outer lens.

5. The vehicle light module according to claim 4, characterized in that: The low-beam light source includes a plurality of first light-emitting units arranged along a first direction, and the plurality of first light-emitting units are all opposite to the first optical interface; The first reflective surface includes a plurality of sub-reflective surfaces arranged along the first direction, and each of the sub-reflective surfaces is opposite to one of the first light-emitting units; The first light emitting surface includes a plurality of first sub-light emitting surfaces arranged along the first direction, each of the first sub-light emitting surfaces is opposite to a sub-reflecting surface, and the first direction is a width direction of the outer lens.

6. The vehicle lamp module according to claim 5, characterized in that: The high-beam light source comprises a plurality of second light-emitting units arranged along a first direction, and in the first direction, the plurality of first sub-light-emitting surfaces located in the middle correspond one-to-one to the plurality of second light-emitting units; Wherein, along the first direction, the two first light-emitting sub-surfaces located at the head and the tail are both free-form surfaces, and the plurality of first light-emitting sub-surfaces located in the middle are all symmetrical surfaces.

7. The vehicle lamp module according to claim 4, characterized in that: The first inner lens further includes a first plane adjacent to the second optical interface and a second plane connected to the first plane, the first plane is opposite to the first optical interface and is arranged at an acute angle to the second optical interface, and the second plane is perpendicular to the second direction; At least a portion of the first reflective surface is disposed on the second plane, and a cutoff line structure is formed between the first plane and the second plane.

8. The vehicle light module according to claim 4, characterized in that: The second inner lens comprises a collimating portion and a reflecting portion connected to each other, the high-beam light source is arranged on one side of the collimating portion, the reflecting portion comprises a second reflecting surface and a second light emitting surface, and the second light emitting surface is opposite to the second optical interface; The collimating portion is used to collimate the second light beam into parallel light and project the second light beam to the second reflecting surface, the second reflecting surface is used to reflect the second light beam to the second light emitting surface, and the second light emitting surface is used to converge the reflected second light beam and project the second light beam to the second optical interface; The first optical interface, the second optical interface and the second reflective surface are all planes, and the first optical interface is parallel to the second reflective surface.

9. The vehicle lamp module according to claim 4, characterized in that: The outer lens is a focal line lens, the focal line of the outer lens extends along the first direction, the focal line of the outer lens is located on the first optical interface, and the focus of the light exit surface of the second inner lens is located on the focal line of the outer lens.

10. A vehicle lamp, characterized in that: It comprises the vehicle light module as described in any one of claims 1-9.

Images