Car lamp module and car lamp
By designing a car light module that integrates low-beam and high-beam light exit module units and canceling the settings of the shading parts, the problem of light occlusion and assembly difficulty in traditional dual-light modules is solved, and the utilization rate of light is improved.
Patent Information
- Application Number
- CN202421466414.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Traditional dual-light modules have problems with light occlusion and assembly difficulty in design, resulting in a low light utilization rate.
A car light module is designed, including two light-exit module units arranged in the first direction and a first lens. The virtual images of the emitted light of the low-beam and high-beam light-exit module units are both located at the focus position of the first lens, and the setting of the occlusion member is cancelled.
By integrating low-beam and high-beam light exit module units, complete imaging of the light type is ensured, light occlusion is avoided, and light utilization is improved.
Smart Images
Figure CN222577998U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, and more specifically, to a vehicle lamp module and a vehicle lamp. Background Art
[0002] With the development of vehicle lighting technology, dual-beam modules with both high and low beams are becoming more and more popular. Traditional dual-beam modules usually adopt a solution combining a concentrator and a single-focus focusing lens. In traditional single-focus lenses, optical lenses generally have two or more components and a cut-off baffle structure, which greatly increases the difficulty of assembly and blocks the light pattern, reducing the utilization rate of light.
[0003] Therefore, how to design a vehicle light module to improve the utilization rate of light has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content
[0004] In view of this, an object of the present invention is to provide a vehicle lamp module to improve the utilization rate of light.
[0005] Another object of the present invention is to provide a vehicle lamp comprising the vehicle lamp module.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A vehicle light module comprises two light emitting module units arranged along a first direction and a first lens, wherein the first lens is arranged on the light emitting side of the light emitting module unit, wherein one of the light emitting module units is a low beam light emitting module unit, and the other of the light emitting module units is a high beam light emitting module unit, and virtual images of the emitted light of the low beam light emitting module unit and the emitted light of the high beam light emitting module unit are both located at the focal position of the first lens.
[0008] Optionally, in the above-mentioned vehicle light module, the light output module unit includes a light source, an optical element group and a lens group. The light source is arranged on the light incident side of the optical element group, the lens group is arranged on the light output side of the optical element group, and the first lens is arranged on the light output side of the lens group. The lens group can focus and converge the light emitted by the light source along the second direction, and the first lens can focus and converge the light along the first direction.
[0009] Optionally, in the above-mentioned vehicle lamp module, the lens group includes a plurality of second lenses arranged in sequence along the second direction, and the second lenses are arranged at the light emitting surface.
[0010] Optionally, in the above-mentioned vehicle lamp module, the optical element group includes a plurality of optical elements arranged in sequence along the second direction, and the optical element is provided with a light incident surface, a total reflection curved surface and a light emitting surface;
[0011] The light emitted by the light source enters through the light incident surface arranged on the light incident side of the optical element, is focused by the total reflection curved surface and reflected to the light emitting surface, and then enters the second lens after being emitted from the light emitting surface.
[0012] Optionally, in the above-mentioned vehicle lamp module, an optical surface or a pattern is provided on the lens group.
[0013] Optionally, in the above-mentioned headlight module, the optical element is also provided with an inclined total reflection surface, which is arranged opposite to the total reflection curved surface. The inclined total reflection surface can mirror the total reflection curved surface into a virtual image, and the focus of the first lens is located at the convergence point of the virtual image.
[0014] Optionally, in the above-mentioned vehicle light module, the optical element of the low beam light output module unit is further provided with a cut-off surface, and the cut-off surface is connected to an end of the total reflection curved surface close to the light incident surface.
[0015] Optionally, in the above-mentioned vehicle lamp module, a light leakage flange is further provided on the optical element of the low beam light output module unit, and the light leakage flange is connected to an end of the cut-off surface away from the total reflection curved surface.
[0016] Optionally, in the above-mentioned vehicle light module, the lens group of the low-beam light emitting module unit and the lens group of the high-beam light emitting module unit are both arranged along the second direction or formed in one piece.
[0017] A vehicle lamp comprises the above vehicle lamp module.
[0018] The vehicle light module provided by the utility model integrates the low beam light module unit and the high beam light module unit into one body, and the virtual images of the light emitted by the low beam light module unit and the light emitted by the high beam light module unit are both located at the focal position of the first lens, so as to ensure that the light pattern can be fully imaged, avoid the occurrence of light shielding problems, and thus improve the utilization rate of light. At the same time, the setting of the shielding member in the prior art is eliminated, thereby improving the utilization rate of light. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 The structure of the vehicle light module disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;
[0021] Figure 2 A schematic diagram of the light path of a vehicle light module disclosed in an embodiment of the utility model;
[0022] Figure 3 A schematic diagram of the optical path of the light output module unit disclosed in the embodiment of the utility model;
[0023] Figure 4 It is a schematic diagram of the structure of the lens assembly disclosed in the embodiment of the utility model;
[0024] Figure 5 The structure of the vehicle light module disclosed in the embodiment of the utility model is shown in FIG. Figure 2 ;
[0025] Figure 6 A top view of the light output module unit disclosed in the embodiment of the utility model;
[0026] Figure 7 This is one of the top views of a light output module unit disclosed in an embodiment of the utility model;
[0027] Figure 8 for Figure 7 The light pattern diagram produced by the light output module unit shown;
[0028] Fig. 9 This is a second top view of a light output module unit disclosed in an embodiment of the utility model;
[0029] Fig.10 for Fig. 9 The light pattern diagram produced by the light output module unit shown;
[0030] Fig.11 The third top view of a light output module unit disclosed in an embodiment of the utility model;
[0031] Fig.12 for Fig.11 The light pattern diagram produced by the light output module unit shown;
[0032] Fig.13 This is a fourth top view of a light output module unit disclosed in an embodiment of the utility model;
[0033] Fig.14 for Fig.13 The light pattern diagram produced by the light output module unit shown;
[0034] Fig.15 A schematic diagram of energy distribution of a total reflection curved surface disclosed in an embodiment of the utility model;
[0035] Fig.16 It is a schematic diagram of the light pattern of the high beam light output module unit;
[0036] Fig.17 It is a schematic diagram of the light pattern of the low beam light output module unit;
[0037] Fig.18 is a schematic diagram of the light pattern after superposition;
[0038] Fig.19 A schematic diagram of the structure of the first lens disclosed in an embodiment of the utility model;
[0039] Fig. 20 The free-form surface of the first lens disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;
[0040] Fig.21 The free-form surface of the first lens disclosed in the embodiment of the utility model is shown in FIG. Figure 2 .
[0041] Among them, 100 is a light output module unit, 110 is an optical element group, 111 is an optical element, 1111 is a light incident surface, 1112 is a total reflection curved surface, 1113 is an inclined total reflection surface, 1114 is a cut-off surface, 1115 is a light leakage flange, 120 is a lens group, 121 is a second lens, 130 is a light source, and 200 is a first lens. DETAILED DESCRIPTION
[0042] In addition to the problems mentioned in the background technology, the traditional dual-light module also has the following problems:
[0043] 1. Using the "condenser + single-focus focusing lens" solution, the high-beam module is usually longer in the vehicle body axis direction and larger in size;
[0044] 2. The high beam and low beam patterns of the dual-light module usually have very obvious dispersion bands;
[0045] 3. The solution of setting a concentrator will form multiple bright spots on the light distribution mirror outside the whole lamp;
[0046] 4. When the high beam and low beam patterns are superimposed, there will be obvious dark areas, which will affect the perception of the road surface;
[0047] 5. The overall brightness of the high beam is low, and the conventional LED luminous flux energy cannot effectively improve the brightness of the high beam.
[0048] The core of the utility model is to disclose a vehicle lamp module to improve the utilization rate of light.
[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making novel work are within the scope of protection of the utility model.
[0050] like Figure 1 and Figure 5As shown, an embodiment of the utility model discloses a vehicle lamp module, including a light output module unit 100 and a first lens 200 .
[0051] There are two light output module units 100, which are arranged along a first direction. It should be noted that the first direction here may be a vertical direction, and the vertical direction here refers to the up-down direction of the vehicle light module itself. Figure 2 In the y direction shown in , the first lens 200 is arranged on the light emitting side of the light emitting module unit 100. One of the light emitting module units 100 is a low-beam light emitting module unit, and the other light emitting module unit 100 is a high-beam light emitting module unit. The low-beam light emitting module unit and the high-beam light emitting module unit can be connected through a heat sink, or can be independently arranged. The virtual images of the emitted light of the low-beam light emitting module unit and the emitted light of the high-beam light emitting module unit are both located at the focal position of the first lens 200 to ensure that the light pattern can be fully imaged and avoid the occurrence of light blocking problems. Fig.19 As shown, the optical surface of the first lens 200 is a free-form surface, and the setting of the free-form surface can reduce the thickness and volume weight of the first lens 200, which is in line with the concept of energy saving and carbon neutrality. The outer surface of the first lens 200 is provided with a grid area, and the setting of the grid area can make the light pattern diffuse horizontally or vertically at a smaller angle.
[0052] The shape of the first lens 200 can be freely customized according to requirements, such as Figure 20-21 As shown, the shape of the first lens 200 can be a curved surface constructed by a free curve in the horizontal direction and a free curve in the vertical direction.
[0053] The light emitted by the light source 130 enters the light output module unit 100, and is emitted after being focused by the light output module unit 100. The virtual image formed after the light is emitted through the light output module unit 100 is located at the focal position of the first lens 200. The light emitted by the light output module unit 100 enters the first lens 200 and is focused and converged before being emitted, forming a high beam light type and a low beam light type.
[0054] In the vehicle light module disclosed in the embodiment of the utility model, the low beam light emitting module unit and the high beam light emitting module unit are integrated into one, and the two share a first lens 200, thereby reducing the provision of a shielding member between the high beam and the low beam in the traditional solution, and there is no dark area when the high beam and the low beam light patterns are superimposed.
[0055] In a specific embodiment, the vehicle lamp module disclosed in the embodiment of the utility model, the light output module unit 100 includes a light source 130, an optical element group 110 and a lens group 120, the light source 130 is arranged on the light incident side of the optical element group 110, the lens group 120 is arranged on the light exit side of the optical element group 110, the lens group 120 can focus and converge the light emitted by the light source 130 along the second direction, the first lens 200 can focus and converge the light along the first direction, and the first direction is arranged perpendicular to the second direction. Among them, the first direction can be a vertical direction, that is, the z direction shown in the figure, and the second direction can be a horizontal direction, that is, the y direction shown in the figure.
[0056] like Figure 7 As shown, the optical element group 110 includes a plurality of optical elements 111 arranged in sequence along the second direction. Figure 2 and Figure 5 As shown, the optical element 111 is provided with a light incident surface 1111, a total reflection curved surface 1112 and a light emitting surface. Specifically, the light incident surface 1111 is provided at the light incident end of the optical element 111 for the incident light; the light emitting surface is provided at the light emitting end of the optical element 111 for the emission of light; the total reflection curved surface 1112 is used to focus the incident light and reflect it to the light emitting surface, thereby reducing the need for the concentrator. It should be noted that the light incident surface 1111 is a plane, which is beneficial to mold processing and quality control. Figure 3 As shown, the light emitted by the light source 130 basically passes through the total reflection surface 1112, which can ensure that the light spot is a circle or an ellipse, which is more beneficial to lighting. At the same time, the strongest part of the light emitted by the light source 130 can hit the total reflection surface 1112 far away from the light source 130, which is beneficial to the improvement of brightness. At the same time, all the energy of the light source 130 can be effectively utilized on the total reflection surface 1112, which can effectively improve the central brightness of the light spot. Fig.15 The diagram shows the energy distribution of the total reflection curved surface 1112. At the same time, the setting of the total reflection curved surface 1112 can reduce the refracted light, improve the utilization rate of the total reflection light, and effectively improve the brightness of the high beam.
[0057] The vehicle lamp module disclosed in the embodiment of the utility model, the lens group 120 includes a plurality of second lenses 121 arranged in sequence along the second direction, the second lenses 121 are arranged at the light emitting surface position, and the light emitted by the optical element 111 enters the second lenses 121 and then emits. Among them, the light incident surface 1111 and the second lenses 121 are respectively arranged at the two ends of the light emitting module unit 100 along the vehicle body axis direction.
[0058] In order to further adjust and control the light pattern, an optical surface or pattern may be provided on the lens group 120, such as Figure 4It should be noted that the outer surface of the second lens 121 is a free-form surface, which can reduce the thickness, volume and weight of the second lens 121, which is in line with the concept of energy saving and carbon neutrality.
[0059] like Figure 2 As shown, taking the low beam light output module unit as an example, the light emitted by the low beam light source 130 enters through the light incident surface 1111, and the total reflection surface 1112 focuses the light and generates total reflection, and emits the light forward and enters the second lens 121. The second lens 121 focuses and converges the light along the second direction. The specific optical path diagram is shown in FIG. Figure 3 As shown, the second lens 121 deflects the image of the near beam to the focal position of the first lens 200 to ensure that the light pattern can be fully imaged. The light then enters the first lens 200, and the first lens 200 focuses the light in a first direction to form a near beam light pattern unit. Multiple light pattern units are combined to form a near beam light pattern. The optical path of the high beam light output module unit is consistent with that of the near beam light output module unit. The specific optical path diagram is shown in FIG. Figure 2 shown.
[0060] For the low beam light output module unit, the outer surface of the second lens 121 is a free optical curved surface, which can realize the focusing of light along the first direction, and the total reflection curved surface 1112 can realize the focusing of light along the second direction, and the reflected light is cross-distributed left and right, so that the light pattern is diverged left and right. Or the outer surface of the second lens 121 can realize the focusing of light along the first direction and the second direction, and the focus of the second lens 121 in the left and right directions is changed, and the final light pattern presents a horizontal cutoff line.
[0061] It should be noted that, for any light output module unit 100, the optical element group 110 and the lens group 120 can be arranged and combined. For example, by changing the number of optical element groups 110 and lens groups 120, the superposition of low beam light types, the superposition of high beam light types, or the superposition of low beam light types and high beam light types can be achieved, thereby realizing the basic low beam function, the AFS (adaptive frontlight system) function to generate an ADB (adaptive high beam) light type, a horizontal cutoff line light type, a cutoff line light type with an inflection point, and an ADB light type with a dark area. Different light types can be achieved, and the light type design is more flexible. Figure 7-Figure 14 The top view of different types of light output module units 100 and the corresponding light patterns are shown.
[0062] In the vehicle light module disclosed in the embodiment of the utility model, the light patterns of the low beam light emitting module unit and the high beam light emitting module unit are independent and complete, and the light patterns of each part can be controlled independently without blocking each other. Figure 16-Figure 17 The light pattern shown, Fig.18The figure shown is a light pattern diagram after the low beam and the high beam are superimposed. It can be understood that the light pattern shown in the figure is only for illustration and is not limited to the light pattern shown in the figure. The vehicle light module disclosed in the embodiment of the utility model cancels the setting of the baffle in the prior art and the shielding member between the high beam light output module unit and the low beam light output module unit. The high beam can form a complete light pattern, and there is no dark area when the high beam light pattern and the low beam light pattern are superimposed.
[0063] like Figure 5 As shown, in a specific embodiment of the utility model, the optical element 111 is further provided with an inclined total reflection surface 1113, which is arranged opposite to the total reflection curved surface 1112. The inclined total reflection surface 1113 can mirror the total reflection curved surface 1112 into a virtual image, and the focus of the first lens 200 is located near the convergence of the virtual image, and the optical path is folded, which can shorten the length of the module. At the same time, the inclined total reflection surface 1113 is a plane, and the plane setting is conducive to mold processing and can reduce the difficulty of assembly.
[0064] like Figure 6 As shown, in a specific embodiment of the utility model, the optical element 111 of the low beam light output module unit is further provided with a cut-off surface 1114, and the cut-off surface 1114 connects one end of the total reflection curved surface 1112 close to the light incident surface 1111. The intersection line of the cut-off surface 1114 and the total reflection curved surface 1112 is the boundary line forming the cut-off line of the low beam light type. The setting of the cut-off surface 1114 can reduce the volume of the headlight module and form a good cut-off line color, which is close to no dispersion.
[0065] like Figure 5-Figure 6 As shown, in order to avoid light leakage, based on the above embodiment, the optical element 111 of the low beam light output module unit is further provided with a light leakage flange 1115, and the light leakage flange 1115 connects the end of the cut-off surface 1114 away from the total reflection curved surface 1112. The provision of the light leakage flange 1115 can improve the utilization rate of light and reduce the generation of stray light.
[0066] In the vehicle lamp module disclosed in the embodiment of the present utility model, the lens group 120 of the low beam light emitting module unit and the lens group 120 of the high beam light emitting module unit are both arranged along the second direction or formed in one piece.
[0067] In addition, the vehicle light module disclosed in the embodiment of the utility model also includes multiple circuit boards, and the multiple light sources 130 correspond one by one to the multiple circuit boards. The long side of any circuit board extends along the first direction, that is, it is placed vertically and faces the direction of the optical axis. Such a layout of the vehicle light module has a good thermal cycle, is conducive to heat dissipation, and is easy to install.
[0068] The utility model also discloses a vehicle lamp, comprising the vehicle lamp module as described in the above embodiment, and thus has all the technical effects of the above vehicle lamp module, which will not be described in detail here.
[0069] For ease of description, only the parts related to the present invention of the related application are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.
[0070] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.
[0071] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0072] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.
Claims
1. A vehicle light module, characterized in that: The invention comprises two light emitting module units (100) and a first lens (200) arranged along a first direction, wherein the first lens (200) is arranged on the light emitting side of the light emitting module unit (100), wherein one of the light emitting module units (100) is a low-beam light emitting module unit, and the other of the light emitting module units (100) is a high-beam light emitting module unit, and virtual images of the light emitted by the low-beam light emitting module unit and the light emitted by the high-beam light emitting module unit are both located at the focal position of the first lens (200).
2. The vehicle lamp module according to claim 1, characterized in that: The light output module unit (100) comprises a light source (130), an optical element group (110) and a lens group (120); the light source (130) is arranged on a light incident side of the optical element group (110); the lens group (120) is arranged on a light output side of the optical element group (110); the first lens (200) is arranged on the light output side of the lens group (120); the lens group (120) is capable of focusing and converging light emitted by the light source (130) along a second direction; and the first lens (200) is capable of focusing and converging the light along a first direction.
3. The vehicle lamp module according to claim 2, characterized in that: The lens group (120) comprises a plurality of second lenses (121) arranged in sequence along a second direction.
4. The vehicle lamp module according to claim 3, characterized in that: The optical element group (110) comprises a plurality of optical elements (111) arranged in sequence along a second direction, wherein the optical element (111) is provided with a light incident surface (1111), a total reflection curved surface (1112) and a light emitting surface; The light emitted by the light source (130) enters through the light incident surface (1111) arranged on the light incident side of the optical element (111), is focused by the total reflection curved surface (1112) and reflected to the light exiting surface, and then is emitted from the light exiting surface and enters the second lens (121).
5. The vehicle lamp module according to claim 4, characterized in that: The lens group (120) is provided with an optical surface or a pattern.
6. The vehicle lamp module according to claim 4, characterized in that: The optical element (111) is further provided with an inclined total reflection surface (1113), the inclined total reflection surface (1113) being arranged opposite to the total reflection curved surface (1112), the inclined total reflection surface (1113) being capable of mirroring the total reflection curved surface (1112) into a virtual image, and the focus of the first lens (200) being located at the convergence point of the virtual image.
7. The vehicle lamp module according to claim 6, characterized in that: The optical element (111) of the low-beam light output module unit is also provided with a cut-off surface (1114), and the cut-off surface (1114) is connected to an end of the total reflection curved surface (1112) close to the light incident surface (1111).
8. The vehicle lamp module according to claim 7, characterized in that: A light leakage flange (1115) is also provided on the optical element (111) of the low-beam light output module unit, and the light leakage flange (1115) is connected to an end of the cut-off surface (1114) that is away from the total reflection curved surface (1112).
9. The vehicle lamp module according to claim 4, characterized in that: The lens group (120) of the low-beam light output module unit and the lens group (120) of the high-beam light output module unit are both arranged along the second direction or formed in one piece.
10. A vehicle lamp, characterized in that: It comprises a vehicle light module as described in any one of claims 1 to 9.