High-pixel ADB module and vehicle lamp

Abstract

The utility model relates to a high-pixel ADB module and a vehicle lamp. The high-pixel ADB module comprises an outer lens 1, a pressing plate I 2, a middle lens 3, a pressing plate II 4, an inner lens 5, a base 6, a lamp panel 7, a radiator 8 and a cooling fan 9, the outer lens 1, the pressing plate I 2, the middle lens 3, the pressing plate II 4, the inner lens 5 and the base 6 are assembled together to form an optical assembly, and the radiator 8 and the cooling fan 9 are assembled together to form a cooling assembly. The optical assembly and the heat dissipation assembly are fixed to the front side and the rear side of the lamp panel 7 respectively to form a complete ADB module. A trapezoid LED light source array is arranged on the lamp panel 7, each LED in the LED light source array can be independently lightened or extinguished, formed light beams sequentially penetrate through the grid light-transmitting arrays of the inner lens 5, the middle lens 3 and the outer lens 1 and then are emitted outwards, and the ADB function and the unique lightening effect are achieved. The high-pixel ADB module has the advantages of being simple in structure, good in heat dissipation performance, long in service life and the like, and is expected to create good economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to a high-pixel ADB module and automotive lighting. Background Technology

[0002] Automobiles are equipped with many different types of headlights, such as high beams, low beams, turn signals, side marker lights, daytime running lights, and fog lights. These headlights typically use a light source (such as halogen bulbs or LED chips) and a reflective structure (such as a rearview mirror or light guide strip) to achieve a specific function, offering advantages such as simple structure and low cost. With technological advancements and increased market competition, traditional headlights have undergone upgrades, and more and more headlights with complex functions and unique lighting effects have appeared on the market.

[0003] Adaptive Driving Beam (ADB) is one such example. This headlight works in conjunction with the vehicle's ADAS system to adjust the distribution of illumination light in real time. By selectively blocking light in specific areas, it effectively prevents glare for oncoming drivers, thus ensuring driving safety. Research reveals that current ADB-enabled headlights on the market generally suffer from complex structures, high costs, and poor heat dissipation. Our company's technical staff, drawing on years of experience in automotive headlight R&D, has developed a new high-pixel ADB module and headlight. Utility Model Content

[0004] One of the objectives of this utility model is to provide a novel high-pixel ADB module, including an optical component, a lamp board 7, and a heat dissipation component. An LED light source array is provided on one side surface of the lamp board 7. The optical component is fixedly connected to the lamp board 7 and faces the LED light source array. The heat dissipation component is fixed on the other side of the lamp board 7.

[0005] In the above scheme, the optical component includes an optical lens group and a base 6. A light-transmitting hole is provided on the base 6. The optical lens group is fixed on one side of the base 6 and faces the light-transmitting hole. The lamp board 7 is fixed on the other side of the base 6 and its LED light source array faces the light-transmitting hole.

[0006] In the above scheme, the optical lens group includes an outer lens 1, a middle lens 3, an inner lens 5, and matching pressure plates I2 and II4. Light transmission holes are provided on both pressure plates I2 and II4. Pressure plate I2 is disposed between the outer lens 1 and the middle lens 3 and fixes the two together. Pressure plate II4 is disposed between the middle lens 3 and the inner lens 5 and fixes the two together.

[0007] In the above scheme, positioning posts or screw holes are provided on the outer lens 1, pressure plate I 2, middle lens 3, and pressure plate II 4, and matching positioning holes or screws are provided on the base 6.

[0008] In the above solution, the outer lens 1 is specifically a biconvex lens, the middle lens 3 is a concave-convex lens with its concave surface facing the outer lens 1, and the inner lens 5 is specifically a plano-convex lens with its convex surface facing the middle lens 3.

[0009] In the above solution, an antireflection film is further provided on the light-emitting surface of the inner lens 5.

[0010] In the above solution, the light-transmitting area of the outer lens 1 is divided into a series of light-transmitting blocks to form a light-transmitting array, and the shape of the light-transmitting array is the same as or similar to the shape of the LED light source array.

[0011] In the above solution, the array shapes of the light-transmitting array and the LED light source array are selected from any one of a rectangle, a sector, and a trapezoid, and preferably a trapezoid.

[0012] In the above solution, the heat dissipation component includes a radiator 8 and a cooling fan 9. The lamp board 7 is fixedly connected to one side of the radiator 8, and a heat sink array is provided on the other side of the radiator 8. The cooling fan 9 is fixed on the heat sink array.

[0013] The present invention also provides a vehicle headlamp equipped with the above high-pixel ADB module.

[0014] Compared with existing similar products, the advantages of the high-pixel ADB module and the vehicle headlamp of the present utility model are reflected in the following aspects: (1) Excellent high and low beam performance. The system focal length of the vehicle headlamp is 30mm < f < 25mm, and the spreading half angle of the projection image spot > 15°. It can not only meet the requirements of the high beam regulations but also achieve an ideal low beam dynamic curve lighting effect (dynamic curve lighting angle > 15°); (2) High pixel. In addition to meeting the high and low beam lighting requirements, the optical system of the vehicle headlamp also realizes high-pixel fine perception, as well as low distortion and lateral chromatic aberration; (3) The vehicle headlamp not only has a simple structure and is easy to assemble, but also has good heat dissipation effect and stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded schematic view of the high-pixel ADB module.

[0016] Figure 2 It is an arrangement schematic view of the optical lens group.

[0017] Figure 3 It is a comparison diagram of the effects before and after coating the inner lens.

[0018] Figure 4 It is a false color diagram of the dark area effect of the high-pixel ADB module.

[0019] Figure 5 It is a DBL low beam light pattern diagram of the high-pixel ADB module.

[0020] Figure 6 This is a diagram showing the lighting effect of a high-pixel ADB module.

[0021] Figure 7 This is a schematic diagram of the high-resolution ADB module's welcome message, logo, and animation.

[0022] Figure 8 This is a distortion aberration map of a high-pixel ADB module.

[0023] Figure 9 This is the axial color difference map of the high-pixel ADB module.

[0024] Reference numerals: 1-Outer lens, 2-Pressure plate I, 3-Middle lens, 4-Pressure plate II, 5-Inner lens, 6-Base, 7-Lamp board, 8-Heat sink, 9-Cooling fan. Detailed Implementation

[0025] To enable those skilled in the art to fully understand the technical solution and beneficial effects of this utility model, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be emphasized that the following embodiments are merely preferred embodiments of this utility model, and any simple improvements or substitutions made based on them should fall within the protection scope of this utility model.

[0026] like Figure 1-9 The high-pixel ADB module shown includes, from the outside in, an outer lens 1, a pressure plate I 2, a middle lens 3, a pressure plate II 4, an inner lens 5, a base 6, a lamp panel 7, a heat sink 8, and a cooling fan 9. The outer lens 1, pressure plate I 2, middle lens 3, pressure plate II 4, inner lens 5, and base 6 are assembled together to form an optical component, and the heat sink 8 and cooling fan 9 are assembled together to form a heat dissipation component. The optical component and the heat dissipation component are fixed to the front and rear sides of the lamp panel 7, respectively, thus completing the assembly of the entire module and the vehicle light.

[0027] The outer lens 1 has a circular light-transmitting area in the middle, which is divided into multiple squares of the same size, forming a light-transmitting array. Figure 1 The area outside the grid (the black part in the middle) is opaque. Multiple connecting arms and positioning posts extend from the side of the outer lens 1 towards the back. The positioning posts are distributed between adjacent connecting arms, and screw holes are provided on the connecting arms. The outer lens 1 is a plastic lens, which can be injection molded from a plastic with a high Abbe number, high transmittance, and good heat resistance (such as PMMA).

[0028] The shape of the pressure plate I2 is similar to that of the outer lens 1, with a circular hole in the middle for light transmission. The size of the circular hole is similar to but different from the light transmission area of ​​the outer lens 1. The same number of connecting arms with screw holes are also provided on the edge of the pressure plate I2.

[0029] The central lens 3 is square in shape, with a circular lens in the middle and the rest being opaque. Multiple positioning posts are located on the back of the central lens 3. The central lens 3 is also a plastic lens, and can be injection molded from a plastic with a high Abbe coefficient, high transmittance, and good heat resistance (such as PMMA).

[0030] The pressure plate II 4 is generally circular and funnel-shaped, with a small bottom diameter, which can press and fix the inner lens 5 in the base 6. A connecting arm with a screw hole is also provided on the side of the pressure plate II 4.

[0031] The inner lens 5 is fixedly mounted in the circular groove in the middle of the base 6. The inner lens 5 is made of transparent glass with an Abbe number >56 (such as H-ZK9B), which has advantages such as high thermal stability and low dispersion. An anti-reflection coating is applied to the outer light-emitting surface of the inner lens 5 to reduce Fresnel reflection stray light and ultimately reduce background stray light in the optical system. When the headlight anti-glare function is activated, the dark areas require as little background stray light as possible; the anti-reflection coating can improve the stray light condition, with specific effects as follows: Figure 3-4 As shown in the figure, the maximum stray mesh effect before coating is 6 lm / m. 2 The maximum stray light in the mesh pattern after coating is 1.5 lm / m. 2 The decline was very significant.

[0032] The base 6 is the main mounting body, and its overall shape is square. A circular hole for light to pass through is provided in the middle of the base 6, and multiple matching studs and positioning holes are provided on its front side.

[0033] The light board 7 is a square PCB board with an LED light source array located in the center of its front side. The LED light source array is trapezoidal and consists of four rows of LED beads arranged at equal intervals. In addition, matching positioning holes and screw holes are also provided on the surface of the light board 7.

[0034] The heat sink 8 is made of aluminum alloy. It has positioning posts and connecting screw holes on its front side, heat sink arrays are arranged at certain intervals on its back side, and four sets of studs for fixing the cooling fan are set on its top.

[0035] The cooling fan 9 includes a fan and a wiring harness. Four sets of screw holes are provided on the fan, and screws are passed through the screw holes to fix it to the side of the heat sink 8.

[0036] The assembly process of this high-pixel ADB module is as follows: First, the inner lens 5 is placed in the central hole of the base 6. Then, the inner lens 5 is pressed down using the pressure plate II 4. The pressure plate II 4 is then fixed to the base 6 using screws. Next, the middle lens 3 is placed on the base 6, and its center is aligned with the inner lens 5 using positioning pins. The pressure plate I 2 and the outer lens 1 are then placed on top and pressed down. The pressure plate I 2 and the outer lens 1 are then fixed to the base 6 using screws, thus assembling the optical component. The base 6 and the heat sink 8 are then fixed to the front and rear sides of the lamp board 7 using screws, so that the LED light source array on the lamp board 7 is aligned with the central hole of the base 6 and centered (i.e., sharing the same optical axis). Finally, the cooling fan 9 is fixed to the top of the heat sink 8 using screws and the wiring harness is connected, thus obtaining the heat dissipation component. After the high-pixel ADB module is powered on, the LED light source array on the lamp board 7 is controlled to light up in a certain way, realizing multiple functions such as forced high beam, pedestrian recognition and warning, high beam anti-glare, high-speed long-distance lighting, and corner lights.

[0037] The arrangement of the outer lens 1, middle lens 3, and inner lens 5 in this high-pixel ADB module is as follows: Figure 2 As shown in the diagram. The outer lens 1 is a biconvex lens, the middle lens 3 is a concave-convex lens, and the inner lens 5 is specifically a plano-convex lens. The specific parameters of each lens are as follows:

[0038]

[0039] Figure 5 This is a diagram of the DBL low beam pattern of the high-pixel ADB module. As can be seen from the diagram, the headlight meets the low beam regulations and achieves a relatively ideal dynamic cornering lighting effect.

[0040] Figure 6-7 The images show the illumination effect of the high-pixel ADB module, along with illustrations of the welcome sign, logo, and animation. As can be seen from the images, this optical system not only meets the requirements for both near and far beam illumination but also achieves high-pixel precision sensing.

[0041] Figure 8-9 The images show the distortion aberration and axial chromatic aberration of the high-pixel ADB module. As can be seen from the images, the headlight exhibits superior optical performance, displaying low distortion and axial chromatic aberration.

[0042] The ADB lens module and vehicle headlight provided by this invention have many highlights. Its design cleverly integrates LED light sources and a cutting-edge intelligent control system, maximizing energy utilization and achieving particularly significant energy-saving effects. Compared to traditional vehicle headlights, it demonstrates exceptional strength in energy consumption control, not only significantly reducing energy consumption but also extending the lifespan of the headlights to a new level.

[0043] During driving, whether meeting oncoming traffic or following another vehicle, this module can intelligently adjust the high beam according to real-time road conditions, controlling the on / off state of each LED bulb to achieve precise beam distribution and adjustment. This ensures that in any complex road environment, the light can accurately and efficiently illuminate the target area, effectively preventing oncoming vehicles from being dazzled. This feature of finely zoned lighting undoubtedly brings greater safety and comfort to nighttime driving.

[0044] Furthermore, we are committed to providing diverse pixel solutions to meet the personalized needs and product positioning of different customers. With superior performance and highly competitive cost-effectiveness, we are accelerating the localization of intelligent automotive lighting, helping the industry move towards a higher quality development stage.

Claims

1. A high-pixel ADB module, characterized in that: The high-pixel ADB module includes an optical component, a lamp board, and a heat dissipation component. An LED light source array is provided on one side surface of the lamp board. The optical component is fixedly connected to the lamp board and faces the LED light source array. The heat dissipation component is fixed on the other side of the lamp board.

2. The high-pixel ADB module as described in claim 1, characterized in that: The optical components include an optical lens group and a base. A light-transmitting hole is provided on the base. The optical lens group is fixed on one side of the base and faces the light-transmitting hole. The lamp panel is fixed on the other side of the base and its LED light source array faces the light-transmitting hole.

3. The high-pixel ADB module as described in claim 2, characterized in that: The optical lens group includes an outer lens, a middle lens, an inner lens, a pressure plate I, and a pressure plate II. Both pressure plate I and pressure plate II are provided with light-transmitting holes. Pressure plate I is disposed between the outer lens and the middle lens and fixes the two together. Pressure plate II is disposed between the middle lens and the inner lens and fixes the two together.

4. The high-pixel ADB module as described in claim 3, characterized in that: Positioning pins or screw holes are provided on the outer lens, pressure plate I, middle lens, and pressure plate II, and matching positioning holes or screws are provided on the base.

5. The high-pixel ADB module as described in claim 3, characterized in that: The outer lens is a biconvex lens, the middle lens is a concave-convex lens with its concave surface facing the outer lens, and the inner lens is a plano-convex lens with its convex surface facing the middle lens.

6. The high-pixel ADB module as described in claim 3, characterized in that: An anti-reflective coating is also provided on the light-emitting surface of the inner lens.

7. The high-pixel ADB module as described in claim 3, characterized in that: The light-transmitting area of ​​the outer lens is divided into a series of light-transmitting blocks to form a light-transmitting array, the shape of which is the same as or similar to that of the LED light source array.

8. The high-pixel ADB module as described in claim 7, characterized in that: The array shape of the light-transmitting array and the LED light source array is selected from any one of rectangular, sector, or trapezoidal shapes.

9. The high-pixel ADB module as described in claim 1, characterized in that: The heat dissipation component includes a heat sink and a cooling fan. The lamp panel is fixedly connected to one side of the heat sink, and a heat sink array is provided on the other side of the heat sink. The cooling fan is fixed on the heat sink array.

10. A vehicle light, characterized in that: The headlight is equipped with a high-pixel ADB module as described in any one of claims 1-9.

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