Headlamp light-emitting module integrating low beam and corner lamp functions and method
By integrating the near-light optical module and the corner light optical module into a shared optical architecture and maintaining light pattern alignment through a dimming mechanism, the problems of complex structure and poor light pattern matching in the prior art are solved, achieving simplified design and excellent optical effect.
Patent Information
- Application Number
- CN202511941492.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-01-20
AI Technical Summary
The separate design of the low beam module and the cornering lamp module in existing automotive headlights results in complex structure, poor light pattern matching, increased cost, and poor optical transition effect.
The near beam optical module and the corner beam optical module are integrated into a common optical architecture, and the whole is driven by a dimming mechanism to adjust the angle, so that the near beam and the corner beam maintain a fixed relative position during the adjustment process, and share the lens and dimming mechanism.
It achieves simplified structural design, reduced costs, excellent optical matching effect, avoids light spot misalignment or layering, expands functional scenarios, and improves driver's vision and safety.
Smart Images
Figure CN121363723A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of automobile lamp design, more particularly to a front lamp light-emitting module and method integrating low beam and corner lamp functions. BACKGROUND
[0002] Currently, the front lamps of vehicles equipped with corner lamp functions on the market often use independent corner lamp light-emitting units due to the requirements of corner lamp regulations and road lighting. The light-emitting units are often installed on the inner side of the front lamp, which leads to a more complex shape of the front lamp and a more conspicuous corner lamp light-emitting surface at night, thus destroying the modeling effect of the front lamp at night. In terms of structure, the independent corner lamp light-emitting unit requires a larger opening space for the front lamp, and the installation structure is more complex, which means higher cost. In terms of lighting effect, the superposition of the light pattern of the independent corner lamp light-emitting unit and the low beam module is more complex, especially when the low beam module is adjusted up and down, the corner lamp lighting area and the low beam area will appear layered, and the optical transition effect is poor. Therefore, it is necessary to innovate the new light-emitting unit integrating low beam and corner lamp functions. If the problem of integrating low beam and corner lamp functions can be solved through innovation, a simple modeling can be achieved, the structure design can be simplified, the cost can be reduced, and a better optical matching effect can be achieved. SUMMARY
[0003] The present application provides a front lamp light-emitting module and method integrating low beam and corner lamp functions, aiming to solve the problems of complex structure and poor light pattern matching during dimming caused by the independent setting of the low beam module and the corner lamp module in the existing front lamp of vehicles, and proposes a highly integrated solution.
[0004] To achieve the above-mentioned purpose, the present application provides a front lamp light-emitting module integrating low beam and corner lamp functions, comprising:
[0005] A front lamp light-emitting module integrating low beam and corner lamp functions, comprising:
[0006] a housing;
[0007] a low beam optical module arranged in the housing, the low beam optical module generating a low beam light pattern with a bright-dark cutoff line;
[0008] a corner lamp optical module arranged in the housing, the corner lamp optical module generating a laterally diffused corner lamp light pattern, the light source of the corner lamp optical module being independently controllable, and its brightness being adjustable to at least two different levels to respectively realize an enhanced low beam width mode and a corner lighting mode;
[0009] wherein the low beam optical module and the corner lamp optical module are integrated in a common optical architecture and share an exit lens;
[0010] A light adjusting mechanism drives the integrated low beam optical module and corner light optical module as a whole to adjust the angle, so that the low beam light pattern and the corner light light pattern always maintain a fixed relative position during the adjustment.
[0011] In one embodiment, the exit lens includes a first distribution area corresponding to the low beam optical module and a second distribution area corresponding to the corner light optical module.
[0012] In one embodiment, the corner light optical module includes a corner light light source and a corner light reflector that guides the light emitted by the corner light light source to the second distribution area of the exit lens.
[0013] In one embodiment, the corner light reflector is disposed on one side of the low beam optical module.
[0014] In one embodiment, the corner light light source has a first brightness level and a second brightness level, the first brightness level being lower than the second brightness level.
[0015] In one embodiment, when in the enhanced low beam width mode, the corner light light source emits light at the first brightness level, and the resulting light pattern is fused with the low beam light pattern at the edge area.
[0016] When in the corner illumination mode, the corner light light source emits light at the second brightness level to provide a wide range of lateral illumination.
[0017] In one embodiment, the first brightness level is 20%-40% of the maximum brightness, and the second brightness level is 80%-100% of the maximum brightness.
[0018] In one embodiment, the low beam optical module and the corner light optical module share the same mounting substrate, heat dissipation structure, and electrical connector.
[0019] In one embodiment, the integrated low beam and corner light function headlamp light emitting module is provided with an integral mounting interface for fixing and light adjusting connection with the vehicle lamp assembly.
[0020] An integrated low beam and corner light function headlamp light emitting method for controlling the integrated low beam and corner light function headlamp light emitting module, comprising:
[0021] S1: receiving a vehicle state signal or user instruction;
[0022] S2: controlling the brightness level of the light source of the corner light optical module according to the vehicle state signal or user instruction.
[0023] S21: when the lighting width of the road on both sides needs to be enhanced, the corner light source is controlled to emit light at a first brightness level;
[0024] S22: when the vehicle is turning or needs to be assisted in the curve, the corner light source is controlled to emit light at a second brightness level, wherein the second brightness level is higher than the first brightness level.
[0025] The present application has the following beneficial effects:
[0026] The structure is more optimal and the cost is lower: two sets of functions share one set of shells, lenses and light adjusting mechanisms, reducing the number of parts, assembly processes and wiring harnesses, thereby directly reducing material, manufacturing and subsequent maintenance costs.
[0027] Intelligent: the entire module moves together when adjusting light, and the low beam and corner light spot are always perfectly aligned, without misalignment or layering, and the low brightness helps to "widen" the field of view when driving straight, and the high brightness independently illuminates the curve when turning, realizing the scene expansion of functions. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a structure diagram of a front lamp light emitting module integrating low beam and corner light functions according to an embodiment of the present application.
[0029] Figure 2 is a structure diagram of a front lamp light emitting module integrating low beam and corner light functions after installation according to an embodiment of the present application.
[0030] Figure 3 is a flow diagram of a front lamp light emitting method integrating low beam and corner light functions according to an embodiment of the present application.
[0031] 1 is a shell; 2 is a low beam optical module; 3 is a corner light optical module; and 4 is an exit lens. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0033] Figure 1 、 Figure 2 is a structure diagram of a front lamp light emitting module integrating low beam and corner light functions according to an embodiment of the present application. The front lamp light emitting module integrating low beam and corner light functions comprises:
[0034] A front lamp light emitting module integrating low beam and corner light functions comprises:
[0035] a shell 1;
[0036] The low beam optical module 2 is arranged in the housing 1, and generates a low beam light pattern with a clear cut-off line for basic illumination of the road in front of the vehicle.
[0037] The cornering light optical module 3 is arranged in the housing 1, and generates a laterally diffused cornering light pattern. The light source of the cornering light optical module 3 is independently controllable, and its brightness can be adjusted to at least two different levels to respectively realize an enhanced low beam width mode and a cornering light mode.
[0038] The low beam optical module 2 and the cornering light optical module 3 are integrated in a common optical architecture, and share a common exit lens 4.
[0039] The light adjustment mechanism drives the integrated low beam optical module 2 and cornering light optical module 3 as a whole to adjust the angle, so that the relative positions of the low beam light pattern and the cornering light pattern remain fixed during the adjustment.
[0040] Specifically, the low beam optical module 2 is fixedly installed in the housing 1, and includes a low beam LED light source and a reflector. The reflector includes an inner lens and a light shield plate to generate a low beam light pattern with a clear cut-off line for basic illumination of the road in front of the vehicle.
[0041] The cornering light optical module 3 is also arranged in the housing 1 in a compact spatial arrangement with the low beam optical module 2. The module includes a cornering light LED light source and a cornering light reflector. The cornering light optical module 3 can generate a laterally diffused cornering light pattern for illuminating the side front area when the vehicle is turning.
[0042] Further, the light adjustment mechanism is fixedly connected with the housing 1 or the mounting frame of the module, so that when the light adjustment mechanism is actuated, the housing 1 and all the optical modules integrated therein move together with the exit lens 4 to realize overall light adjustment.
[0043] The common optical architecture specifically includes that the reflector of the low beam optical module 2 and the cornering light reflector of the cornering light optical module 3 are mutually adapted in spatial layout to jointly constitute a compact integrated optical architecture with the optical paths pointing to the common exit lens 4.
[0044] In one embodiment, the exit lens 4 includes a first light distribution area corresponding to the low beam optical module 2 and a second light distribution area corresponding to the cornering light optical module 3.
[0045] Specifically, the exit lens 4 is installed at the front end of the housing 1 and covers the low beam optical module 2 and the cornering light optical module 3. The exit lens 4 is a single optical component, but includes different functional areas:
[0046] The first light distribution area corresponds to the low beam optical module 2, which is responsible for the final diffusion and distribution of the low beam, forming a low beam spot that meets the requirements.
[0047] The second light distribution area corresponds to the corner light optical module 3, which is located on the side of the lens. The optical surface of the corner light optical module 3 is designed to deflect and diffuse the corner light beam to a large angle to the front side.
[0048] In one embodiment, the corner light optical module 3 includes a corner light source and a corner light reflector that directs the light emitted by the corner light source to the second light distribution area of the exit lens 4.
[0049] In one embodiment, the corner light reflector is arranged on one side of the low beam optical module 2.
[0050] In one embodiment, the corner light source has a brightness level that includes a first brightness level and a second brightness level, with the first brightness level being lower than the second brightness level.
[0051] Specifically, the driving circuit of the corner light LED source is independently controllable and can be adjusted to at least two different brightness levels.
[0052] In one embodiment, when in the enhanced low beam width mode, the corner light source emits light at the first brightness level, and the resulting light pattern is fused with the edge region of the low beam light pattern.
[0053] When in the corner illumination mode, the corner light source emits light at the second brightness level to provide a wide range of side illumination.
[0054] Specifically, the enhanced low beam width mode: when the vehicle is in straight-line driving, the low beam is turned on, and there is no need for corner illumination, the body controller controls the corner light LED to emit light at the first brightness level. At this time, the resulting corner light pattern has low brightness, and the main function is to fuse with the edge region of the low beam light pattern, gently widening the illumination range on both sides of the near road, and improving the driver's perception of pedestrians or obstacles on the roadside without causing glare.
[0055] The corner illumination mode: when the system detects the need to enhance side illumination, for example, the driver turns on the turn signal, or the steering wheel angle sensor detects a certain turning angle, and the vehicle speed is usually lower than 40 km / h, the body controller controls the corner light LED to switch to the second brightness level. At this time, the corner light optical module works at full capacity, producing a high-brightness, wide-range side illumination light pattern that effectively illuminates the inside area of the corner.
[0056] In one embodiment, the first brightness level is 20%-40% of the maximum brightness, and the second brightness level is 80%-100% of the maximum brightness.
[0057] In one embodiment, the corner light LED is connected to the body controller, receiving the turn signal, steering wheel angle and vehicle speed signals. When the system is in low beam state and no turning, the corner light LED is always on at 30% brightness for light compensation. When the turning signal is detected and the vehicle speed is lower than 40km / h, the corner light LED switches to 100% brightness.
[0058] In one embodiment, as shown in Figure 1 The low beam optical module 2 and the corner light optical module 3 share the same mounting base plate, heat dissipation structure and electrical connector.
[0059] In one embodiment, the integrated low beam and corner light function headlamp light emitting module is provided with an integral mounting interface for fixing and light adjustment connection with the vehicle lamp assembly.
[0060] Figure 3 A flowchart of an integrated low beam and corner light function headlamp light emitting method for controlling the integrated low beam and corner light function headlamp light emitting module, comprising:
[0061] S1: receiving vehicle state signals or user instructions;
[0062] S2: controlling the brightness level of the light source of the corner light optical module 3 according to the vehicle state signals or user instructions;
[0063] S21: when the illumination width of the road on both sides of the near place needs to be enhanced, controlling the corner light source to emit light at a first brightness level;
[0064] S22: when the vehicle is turning or needs to assist the illumination of the curve, controlling the corner light source to emit light at a second brightness level, wherein the second brightness level is higher than the first brightness level.
[0065] The present application has the following beneficial effects:
[0066] More optimal structure and lower cost: two sets of functions share one set of shell, lens and light adjustment mechanism, reducing the number of parts, assembly process and wire harness, directly reducing the material, manufacturing and subsequent maintenance costs.
[0067] Intelligent: the entire module moves together when adjusting the light, and the low beam and corner light light spots are always perfectly aligned, without misalignment or layering. When driving straight, low brightness is used to "widen" the field of view, and when turning, high brightness is used to independently illuminate the curve, realizing the scene expansion of the function.
[0068] In the description of the application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn in proportion. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0069] It should be noted that in this application, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. It should also be noted that the scope of the methods and devices in the embodiments of the present application is not limited to the order of performing the functions as shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from the described order, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.
[0070] In addition, it should be noted that, unless otherwise explicitly specified and limited, the "connection", "drive" and similar words used in the description of the present application should be broadly understood, which can be direct or through an intermediate medium, or the relationship between two elements inside, and those skilled in the art can understand its specific meaning in the present application according to the specific circumstances. In this paper, "first", "second" and similar words are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations.
[0071] The above-described embodiments are only further descriptions of the present application and do not limit the present application in other forms. Those skilled in the art can make various corresponding modifications and changes according to the present application without departing from the spirit and essence of the present application, and these corresponding modifications and changes should fall within the scope of protection of the present application.
Claims
1. A front light light-emitting module integrating low-beam and corner light functions, characterized in that, Comprising: a housing; a low beam optical module disposed in the housing, the low beam optical module generating a low beam light pattern with a cut-off line; a corner light optical module disposed in the housing, the corner light optical module generating a laterally diffused corner light light pattern, the light source of the corner light optical module being independently controllable, the brightness of which can be adjusted to at least two different levels to respectively realize an enhanced low beam width mode and a corner illumination mode; wherein the low beam optical module and the corner light optical module are integrated in a common optical architecture and share an exit lens; a light adjustment mechanism, the light adjustment mechanism driving the integrated low beam optical module and corner light optical module as a whole to adjust the angle, so that the low beam light pattern and the corner light light pattern always maintain a fixed relative position during adjustment.
2. The front light module with integrated low beam and cornering light functions according to claim 1, characterized in that The exit lens includes a first light distribution area corresponding to the low beam optical module and a second light distribution area corresponding to the corner light optical module.
3. The front headlamp light module integrated with low beam and cornering light functions according to claim 2, characterized in that, The corner light optical module includes a corner light source and a corner light reflector, the corner light reflector guiding the light emitted by the corner light source to the second light distribution area of the exit lens.
4. The front headlamp light module integrated with low beam and cornering light functions according to claim 3, characterized in that, The corner light reflector is disposed on one side of the low beam optical module.
5. The front headlamp light module integrated with low beam and cornering light functions according to claim 3, wherein, The brightness levels of the corner light source include a first brightness level and a second brightness level, the first brightness level being lower than the second brightness level.
6. The front headlamp light module integrated with low beam and cornering light functions according to claim 5, wherein, When in the enhanced low beam width mode, the corner light source emits light at the first brightness level, and the generated light pattern is fused with the low beam light pattern at the edge area; When in the corner illumination mode, the corner light source emits light at the second brightness level to provide a wide range of lateral illumination.
7. The front headlamp light module integrated with low beam and cornering light functions according to claim 5, wherein, The first brightness level is 20%-40% of the maximum brightness, and the second brightness level is 80%-100% of the maximum brightness.
8. The front headlamp light module integrated with low beam and cornering light functions according to claim 1, wherein, The low beam optical module and the corner light optical module share the same mounting substrate, heat dissipation structure and electrical connector.
9. The front headlamp light module integrated with low beam and cornering light functions according to claim 1, wherein, The headlamp light emitting module with integrated low beam and corner light functions is provided with a whole mounting interface for fixing and light adjustment connection with the vehicle lamp assembly.
10. A method of operating an integrated low beam and cornering light function headlamp lighting module as claimed in any one of claims 1 to 9, characterized in that, Comprising: S1: receiving a vehicle state signal or user instruction; S2: controlling the brightness level of the light source of the corner light optical module according to the vehicle state signal or user instruction; S21: when it is necessary to enhance the illumination width on both sides of the road near the vehicle, controlling the corner light source to emit light at the first brightness level; S22: when the vehicle is turning or corner auxiliary illumination is needed, controlling the corner light source to emit light at the second brightness level, wherein the second brightness level is higher than the first brightness level.