Lens module with dimming mechanism, headlamp and vehicle

Abstract

The utility model relates to the technical field of vehicle lamps, and discloses a lens module with a dimming mechanism, a headlamp and a vehicle, the headlamp comprises a lampshade, the lens module is arranged in the lampshade, a radiator is further arranged in the lampshade, the lens module is fixedly arranged at the front end of the radiator, and a decorative ring is further arranged above the lens module. The decorative ring is fixedly installed in the lampshade, gaps larger than 2mm are reserved between the lens module and the lampshade and between the lens module and the decorative ring, a containing cavity is formed in the back side of the radiator, the lamp shell in the structure is made of an integrally-formed plastic part, the number of parts and complex assembling steps are reduced, and therefore the manufacturing cost and the assembling difficulty are reduced; the number of independent assemblies of the lens module is reduced through integrated design, the overall structure is more compact, meanwhile, the vertical position of the lens module is adjusted through adjusting screws in the aspect of adjustment, a complex mechanical dimming system is avoided, the structure is simplified, and manufacturing and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a lens module with a dimming mechanism, a headlamp and a vehicle. Background Art

[0002] Motorcycle headlights are an important guarantee for safe driving of motorcycles, and the design and manufacture of headlights are crucial. Headlights usually include lamp housings, radiators, reflectors, lens holders, lenses, decorative parts, position lights, decorative rings, and lampshades. The combination of position lights and headlights makes motorcycle headlights low-cost and small in space. The function of the lampshade is to protect the internal components while allowing light to pass through. In the field of optical design, the refraction and reflection of light are key technical points. Through reasonable design, light can be propagated in the expected direction, thereby achieving good lighting effects. Headlights are usually implemented in two ways: (1) Arranging the headlight beads and position light beads separately on the internal PCB board and diffusing them through the lampshade. This structure saves costs, but the light is not bright enough and the illumination distance is not enough; (2) Using two PCB boards, one for lighting the headlight beads and the other for lighting the position light beads, and both use external lenses or thick walls for refraction, and then diffuse the light through the lampshade. Although this structure increases costs and makes the space more compact, the light can be refracted through the external lens or thick walls to illuminate a longer distance, which is safer.

[0003] With the improvement of the regulations on motorcycle lights, the second method has become the mainstream design. Among them, the requirements for beam illumination are: in the unloaded state, the low beam of the car and motorcycle headlights illuminates the screen at a distance of 10m. The vertical position of the angle or midpoint of the low beam light-dark cut-off line, for motor vehicles with a height of less than or equal to 1000mm for the center of the low beam light-transmitting surface (reference center, the same below), should not be higher than the straight line 50mm below the horizontal plane where the center of the low beam light-transmitting surface is located and not lower than the straight line 300mm below the horizontal plane where the center of the low beam light-transmitting surface is located; for motor vehicles with a height of more than 1000mm for the center of the low beam light-transmitting surface, it should not be higher than the straight line 100mm below the horizontal plane where the center of the low beam light-transmitting surface is located and not lower than the straight line 350mm below the horizontal plane where the center of the low beam light-transmitting surface is located. Except for three-wheeled vehicles and motorcycles equipped with one headlamp, the horizontal position of the cut-off angle or midpoint of the low beam of the headlamp should be less than or equal to 170 mm to the left and less than or equal to 350 mm to the right compared to the processing plane where the center of the low beam light transmission surface is located. Therefore, in order to avoid the low beam being too high or too low after the lamp is installed, it is usually considered to add an adjustment mechanism to the headlamp so that it has an adjustment range of 3° up and down to align the irradiation position. However, this poses a new challenge to the miniaturization of motorcycle headlamps, and the use of a dimming structure to dim the headlamp lens module up and down will interfere with the thick wall of the position lamp. Utility Model Content

[0004] (I) Technical problems solved: In view of the deficiencies in the prior art, the present invention provides a lens module, a headlamp and a vehicle with a dimming mechanism, which have the advantages of a small headlamp volume. By combining the lens module of the headlamp and the thick wall of the position lamp together, the whole can be dimmed up and down, which solves the problem that the existing motorcycle headlamp combines the dimming mechanism and the thick wall of the position lamp, resulting in excessive volume, and the dimming screws interfere with the thick wall of the position lamp when dimming the headlamp lens module up and down.

[0005] (II) Technical solution: In order to achieve the above-mentioned small size of the headlamp, the lens module and the position light thick wall of the headlamp are combined together so that the whole can be dimmed up and down. The utility model provides the following technical solution: a lens module with a dimming mechanism, the lens module includes a lens holder and an outer lens, the outer lens is fixedly arranged at the front end of the lens holder; a position light thick wall is arranged on the side of the lens holder opposite to the outer lens, a heat sink is fixedly arranged at the rear end of the lens holder, a accommodating cavity is opened on the back side of the radiator, a rotatable adjusting screw is arranged in the accommodating cavity, and the radiator drives the lens holder to rotate by rotating the adjusting screw.

[0006] Preferably, the lens bracket is internally provided with a high and low beam PCB board, a position light PCB board and a reflector.

[0007] Preferably, the thick-walled surface of the position light is also provided with stripes.

[0008] A headlamp with a lens module having a dimming mechanism, the headlamp comprising a lampshade, the lens module being arranged inside the lampshade, characterized in that: the lampshade is an integrally formed plastic part made of PMMA or PC, the heat sink is arranged at the rear end of the lampshade, a decorative ring is arranged above the lens module, the decorative ring is fixedly installed in the lampshade, a gap greater than 2 mm is left between the thick-walled front end and the bottom of the position light and the lampshade, a gap greater than 2 mm is left between the top of the lens bracket and the decorative ring, and the lens module is dimmed up and down and rotated relative to the lampshade by rotating the adjusting screw.

[0009] Preferably, the lamp housing is an integrally formed plastic part made of PMMA or PC.

[0010] Preferably, the lampshade is also fixedly connected to a lamp housing, a driving plate is arranged in the lamp housing, the lens module is arranged in a cavity formed by the lampshade and the lamp housing, the adjusting screw passes through the lamp housing and extends to the outside of the lamp housing, and the radiator is rotatably arranged on the lamp housing.

[0011] Preferably, the lamp housing is an integrally formed plastic part made of PMMA or PC.

[0012] A vehicle with a headlamp, wherein the headlamp is used as a front lamp of the vehicle.

[0013] Preferably, the vehicle is a car, a motorcycle or an electric power-assisted vehicle.

[0014] (III) Beneficial effects: Compared with the prior art, the utility model provides a lens module, a headlamp and a vehicle with a dimming mechanism, which have the following beneficial effects:

[0015] 1. The lens module, headlamp and vehicle with a dimming mechanism are larger in size and more complicated in structure than the traditional technical structure through the coordinated use of the lampshade structure and the lens bracket structure. In the lens module, headlamp and vehicle with a dimming mechanism in the utility model, since the lampshade and the lamp housing are made of one-piece plastic parts (PMMA or PC), the number of parts and complex assembly steps are reduced, thereby reducing the manufacturing cost and assembly difficulty. The lens module integrates multiple components such as the lens bracket, the position light thick wall, the outer lens, the high and low beam PCB board, the position light PCB board and the reflector. This multifunctional integrated design reduces the number of independent components and makes the overall structure more compact. At the same time, a gap greater than 2 mm is left between the lens module and the lampshade, the lamp housing and other components. This reasonable space utilization ensures that there will be no interference between the various parts, and also reduces the volume of the entire device. In terms of adjustment of the lens module, the upper and lower positions of the lens module are adjusted by using adjusting screws, thereby avoiding a complex mechanical dimming system, simplifying the structure and reducing manufacturing and maintenance costs.

[0016] 2. The lens module, headlamp and vehicle with a dimming mechanism, through the coordinated use of the lens module and the adjusting screw structure, are compared with the traditional technical structure, in which interference occurs between the headlamp and the lampshade and the decorative ring during dimming. In the structure of the lens module, headlamp and vehicle with a dimming mechanism in the utility model, a gap greater than 2 mm is left between the bottom and the front end of the lens module and the lampshade, and a gap greater than 2 mm is left between the top of the lens module and the decorative ring. In this way, during dimming, it can be ensured that the lens module will not directly interfere with the decorative ring and the lampshade when dimming up and down, and the lens module is fixed by a radiator, and the lens module is fixed at the front end of the radiator. This design makes the dimming of the lens module mainly controlled by the radiator and the adjusting screw, and the up and down dimming of the lens module is controlled by rotating the adjusting screw. This dimming method is independent and will not affect the thick wall of the position lamp and other fixed structures.

[0017] 3. The lens module, headlamp and vehicle with a dimming mechanism form a dark line in the light pattern compared with the traditional technical structure through the coordinated use of the lampshade structure and the thick-walled structure of the position lamp. The lampshade in the structure of the lens module, headlamp and vehicle with a dimming mechanism in the utility model adopts an integrally molded plastic part design, and has no folded edges on the surface. This design reduces the complexity of light refraction and reflection, allowing the light to diffuse and propagate more evenly, avoiding dark lines in the light pattern caused by edge refraction. At the same time, the design of the reflector and the outer lens in the lens module, combined with the striped texture of the thick wall of the position lamp, can effectively refract and diffuse the light multiple times. This multi-level light processing method helps to form a uniform light pattern and reduce the phenomenon of uneven light concentration or dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the structure of a lens module and a headlamp with a dimming mechanism in the utility model;

[0019] Figure 2 This is a structural side view of a lens module and a headlamp with a dimming mechanism in the utility model;

[0020] Figure 3 This is a top view of the structure of a lens module and a headlamp with a dimming mechanism in the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a lens module and a headlamp with a dimming mechanism in the utility model;

[0022] Figure 5 This is a structural cross-sectional view of a lens module and a headlamp with a dimming mechanism in the utility model;

[0023] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the structure of a lens module and a headlamp with a dimming mechanism in the utility model;

[0024] Figure 7 The utility model is a three-dimensional cross-sectional schematic diagram of the structure of a lens module with a dimming mechanism and a headlamp with the lampshade removed.

[0025] In the figure: 1-lamp cover, 2-heat sink, 3-decorative ring, 4-accommodating cavity, 5-adjusting screw, 6-lens bracket, 7-position lamp thick wall, 8-external lens. DETAILED DESCRIPTION

[0026] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 5 , Figure 6 and Figure 7A lens module with a dimming mechanism, the lens module includes a lens bracket 6, a position light thick wall 7, and an outer lens 8. The lens bracket 6 is fixedly mounted on the radiator 2, and a high and low beam PCB board, a position light PCB board and a reflector are arranged inside the lens bracket 6. An outer lens 8 is fixedly arranged at the front end of the lens bracket 6, and the outer lens 8 is fixed at the front end of the lens bracket 6, which ensures that the transmission path of the light is stable, and the light can be effectively guided to the outer lens 8 through the reflector. The design of the outer lens 8 helps to form the required light pattern, and ensures that the lighting effect meets regulatory requirements by focusing and dispersing the light. The fixed design makes the overall lens module more compact, reduces the number of independent components, and simplifies the design. A position light thick wall 7 is arranged on the lens bracket 6 below the outer lens 8, and stripes are also arranged on the surface of the position light thick wall 7. The stripes can increase the refraction and diffusion effect of the light, ensure that the light of the position light is evenly propagated, and provide a good light pattern. Through the design of stripes, the glare of direct light can be reduced, and visual comfort and driving safety can be improved. A gap of more than 2 mm is left between the front end and the bottom of the position light thick wall 7 and the lampshade 1, and a gap of more than 2 mm is left between the top of the lens bracket 6 and the decorative ring 3, so that the headlight and the position light thick wall 7 will not interfere with each other, and will not interfere with the lampshade 1 and the decorative ring 3.

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A headlamp with a lens module having a dimming mechanism comprises a lampshade 1, a lens module is arranged in the lampshade 1, the lampshade 1 is an integrally molded plastic part, the material is PMMA or PC, and the integrally molded design reduces the independent components that need to be assembled, thereby reducing the complexity of manufacturing and assembly. The integrally molded lampshade 1 can provide better structural strength and sealing, and prevent water and dust from entering the interior. The number of molds and assembly steps are reduced, and the manufacturing and production costs are reduced. At the same time, PMMA and PC materials have excellent light transmittance and weather resistance, which helps to improve the optical performance and durability of the lampshade 1. A radiator 2 is also arranged in the lampshade 1, and the radiator 2 helps to effectively dissipate the heat generated by the lens module and LED lamp beads, prevent overheating, and improve the life and stability of the lamp. Good heat dissipation design ensures that the lamp remains thermally stable when working for a long time, and prevents excessive temperature from affecting the optical performance or causing damage to the lamp. The lens module is fixedly arranged at the front end of the radiator 2, and a decorative ring 3 is also arranged above the lens module. The decorative ring 3 can be used for shape fixing and shielding part of the light refracted from the outer lens 8 to form a light pattern that complies with regulations. The decorative ring 3 is fixedly installed in the lampshade 1. A gap greater than 2 mm is left between the lens module and the bottom and front end of the lampshade 1. A gap greater than 2 mm is left between the top of the lens module and the decorative ring 3. A receiving cavity 4 is provided on the back side of the heat sink 2. A rotatable adjustment screw 5 is provided in the receiving cavity 4. The design of the adjustment screw 5 allows the lens module to be accurately dimmed up and down, ensuring that the beam angle can be adjusted as needed to meet different lighting requirements. In addition, the independent adjustment mechanism of the adjustment screw 5 does not affect other fixed structures, avoids interference, and ensures the smooth dimming operation. At the same time, compared with the complex mechanical dimming system, the adjustment screw 5 provides a simpler and more reliable dimming method, reducing manufacturing and maintenance costs.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, the lampshade 1 is also fixedly connected to the lamp housing, which is an integrally formed plastic part made of PMMA or PC. Like the integrally formed design of the lampshade 1, the integrally formed lamp housing reduces the number of independent components that need to be assembled, thereby simplifying the production process. Reduce the number of molds and assembly steps, and reduce manufacturing and production costs. The integrally formed lamp housing provides better structural strength and sealing to prevent water and dust from entering the interior. PMMA and PC materials have excellent light transmittance and weather resistance, which helps to improve the optical performance and durability of the lamp housing. A driving board is arranged in the lamp housing, and the driving board can light up the lamp beads on the position light PCB board or / and the lamp beads on the high and low beam PCB board through external control. The lens module is arranged in the cavity formed by the lampshade 1 and the lamp housing, and the adjustment screw 5 passes through the lamp housing. The design of the adjustment screw 5 allows the lens module to be dimmed up and down, ensuring that the beam angle can be adjusted as needed to meet different lighting needs. The adjustment screw 5 passes through the lamp housing and is fixed to the radiator 2, allowing the position of the lens module to be adjusted independently without affecting the lamp housing and other fixed structures. By integrating the adjustment mechanism with the heat sink 2 and the lamp housing, the compactness and aesthetics of the overall design can be maintained while reducing the number of external protruding adjustment components. The heat sink 2 is rotatably set on the lamp housing, and the lens bracket 6 is fixed to the heat sink 2, which helps the heat generated by the lens module and the LED lamp beads to be directly transferred to the heat sink 2, thereby improving the thermal management efficiency. This design ensures a stable connection between the lens module and the heat sink 2, reduces vibration and displacement, and improves the stability and durability of the overall structure. Through this fixing method, the installation steps and complexity between the lens module and other components are reduced.

[0030] A vehicle with a headlamp, the front headlight of the vehicle uses a headlamp, and the vehicle is a car, a motorcycle or an electric power-assisted vehicle.

[0031] Working principle: When in use, the driver board can light up the lamp beads on the position light PCB board and / or the lamp beads on the high and low beam PCB board through external control. After the lamp beads on the position light PCB board are always on, they are refracted multiple times through the position light thick wall 7, and then diffused through the lampshade 1 to remind the outside world of driving safety. When the lamp beads on the high and low beam PCB board are lit, the light is reflected to the outer lens 8 through the reflector, diffused through the lampshade 1, and irradiated to the road ahead. When the illumination angle needs to be adjusted, it is fixed by adjusting the screw 5, and the dimming screw is used to rotate so that the lens module can be dimmed up and down, so that there will be no interference between the headlamp lens module and the position light thick wall 7, and there is a gap of more than 2mm between the decorative ring 3 and the lampshade 1, and no interference will occur.

[0032] In this structure, since the lampshade 1 and the lamp housing are both made of an integrally molded plastic part PMMA or PC, the number of parts and the complex assembly steps are reduced, thereby reducing the manufacturing cost and assembly difficulty. The lens module integrates multiple components such as the lens bracket 6, the position light thick wall 7, the outer lens 8, the high and low beam PCB board, the position light PCB board and the reflector. This multifunctional integrated design reduces the number of independent components and makes the overall structure more compact. At the same time, a gap greater than 2 mm is left between the lens module and the lampshade 1, the lamp housing and other components. This reasonable space utilization ensures that there will be no interference between the various parts, and also reduces the volume of the entire device. In terms of adjustment of the lens module, the upper and lower positions of the lens module are adjusted using the adjusting screw 5, thereby avoiding a complex mechanical dimming system, simplifying the structure and reducing manufacturing and maintenance costs.

[0033] At the same time, there is a gap greater than 2mm between the lens module and the bottom and front end of the lampshade 1, and there is a gap greater than 2mm between the top of the lens module and the decorative ring 3. In this way, when dimming, it can be ensured that the lens module will not directly interfere with the decorative ring 3 and the lampshade 1 when dimming up and down. In addition, the lens module is fixed by the heat sink 2, and the lens module is fixedly set at the front end of the heat sink 2. This design makes the dimming of the lens module mainly controlled by the heat sink 2 and the adjustment screw 5. The up and down dimming of the lens module is controlled by the rotation of the adjustment screw 5. This dimming method is independent and will not affect the position lamp thick wall 7 and other fixed structures. The lampshade 1 adopts an integrally molded plastic part design, and there is no folded edge on the surface. This design reduces the complexity of light refraction and reflection, so that the light can be diffused and propagated more evenly, avoiding the dark line of light caused by edge refraction. At the same time, the design of the reflector and the outer lens 8 in the lens module, combined with the striped pattern of the position lamp thick wall 7, can effectively refract and diffuse light multiple times. This multi-level light treatment helps to create a uniform light pattern and reduce the phenomenon of uneven light concentration or dispersion.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens module with a dimming mechanism, the lens module comprising a lens holder (6) and an outer lens (8), wherein the outer lens (8) is fixedly arranged at the front end of the lens holder (6); Features: A position light thick wall (7) is provided on a side of the lens holder (6) opposite to the outer lens. A heat sink (2) is fixedly provided at the rear end of the lens holder (6). A receiving cavity (4) is provided on the back side of the heat sink (2). A rotatable adjusting screw (5) is provided in the receiving cavity (4). The adjusting screw (5) is rotated so that the heat sink (2) drives the lens holder (6) to rotate.

2. The lens module with a dimming mechanism according to claim 1, characterized in that: The lens bracket (6) is provided with a high and low beam PCB board, a position light PCB board and a reflector inside.

3. The lens module with a dimming mechanism according to claim 2, characterized in that: The surface of the position light thick wall (7) is also provided with stripes.

4. A headlamp using the lens module with a dimming mechanism as claimed in claim 1, characterized in that: The headlamp comprises a lampshade (1), wherein the lens module is arranged in the lampshade (1), and is characterized in that: the lampshade (1) is made of an integrally formed plastic part, the heat sink (2) is arranged at the rear end of the lampshade (1), and a decorative ring (3) is arranged above the lens module, and the decorative ring (3) is fixedly installed in the lampshade (1).

5. The headlamp according to claim 4, characterized in that: The lampshade (1) is also fixedly connected to a lamp housing, a driving plate is arranged in the lamp housing, the lens module is arranged in a cavity formed by the lampshade (1) and the lamp housing, the adjustment screw (5) passes through the lamp housing and extends to the outside of the lamp housing, and the heat sink (2) is rotatably arranged on the lamp housing.

6. The headlamp according to claim 5, characterized in that: The lamp housing is an integrally formed plastic part made of PMMA, PC or PP.

7. The headlamp according to claim 4, characterized in that: A gap greater than 2 mm is left between the front end and the bottom of the thick wall (7) of the position lamp and the lampshade (1), and a gap greater than 2 mm is left between the top of the lens bracket (6) and the decorative ring (3).

8. The headlamp according to claim 4, characterized in that: The lens module is controlled by the rotation of the adjusting screw (5) to adjust the light up and down relative to the lampshade (1).

9. A vehicle using the headlamp according to claim 6, characterized in that: The front lamp of the vehicle uses the headlamp.

10. The vehicle according to claim 9, characterized in that: The vehicle is a car, a motorcycle or an electric power-assisted vehicle.

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