ADB high beam and low beam integrated module

Abstract

A novel low-cost ADB high beam and low beam integrated module, the light source includes a low beam light source and a high beam light source; the light splitting piece includes a reflection area, the reflection area is provided with a transverse connecting table, and the reflection area is divided into an upper reflection area and a lower reflection area through the transverse connecting table; the upper reflection area and the upper surface of the transverse connecting table form a low beam reflection area; the upper surface of the transverse connecting table is also provided with a low beam light beam bright-dark cutoff line forming structure; the lower reflection area and the lower surface of the transverse connecting table form a high beam reflection area; the light emitted by the low beam light source is reflected through the low beam reflection area to form a low beam light beam with a bright-dark cutoff line, and the low beam light beam forms a low beam light shape with a bright-dark cutoff line after passing through a lens; the light emitted by the high beam light source is reflected through the high beam reflection area to form an ADB high beam light beam, and the ADB high beam light beam forms an ADB high beam illumination area after passing through the lens; and the ADB high beam illumination area and the low beam light shape are combined to form an ADB high beam light shape; the utility model can effectively solve the problems existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a novel low-cost integrated ADB high beam and low beam module. Background Technology

[0002] In recent years, with the continuous advancement of intelligent technology in the automotive lighting field, traditional automotive lighting is undergoing a transformation. In addition to the traditional low and high beam functions, automotive headlight systems can now also achieve features such as Adaptive Front-lighting System (AFS) and Adaptive Driving Beam (ADB), significantly improving driving safety and comfort.

[0003] Suitability.

[0004] ADB, or Adaptive Dash, is a technology that adjusts the high beam to avoid glare for oncoming or forward vehicles. Current mechanical ADB headlights use cameras to collect information about vehicles ahead. When a target vehicle (oncoming or forward) is approaching, the headlights rotate to create an L-shaped dark area on the left and a reverse L-shaped dark area on the right. These two L-shaped dark areas merge to form a U-shaped dark area. The left and right motors are then controlled to rotate horizontally, ensuring the dark area closely follows the target vehicle. This ensures sufficient visibility while preventing glare for the driver ahead. When there are no vehicles ahead, the headlights rotate back to the high beam position. However, this method suffers from drawbacks such as an overly complex transmission structure, the need for mechanical origin calibration, low control precision, and high production costs. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a novel, low-cost integrated ADB high beam and low beam module that effectively solves the problems existing in the prior art.

[0006] This utility model is achieved through the following technical solution:

[0007] A novel low-cost ADB (Advanced Beam Optimization) high beam and low beam integrated module includes a lens, a beam splitter, and a light source. The beam splitter is disposed between the light source and the lens. The light source includes a low beam source and a high beam source. The beam splitter includes a reflective area, within which a transverse connecting platform is disposed. The transverse connecting platform divides the reflective area into an upper reflective area and a lower reflective area. The upper reflective area and the upper surface of the transverse connecting platform form a low beam reflective area. The upper surface of the transverse connecting platform is provided with a low beam cutoff line formation structure. The lower reflective area and the lower surface of the transverse connecting platform form a high beam reflective area. Light emitted from the low beam source is reflected by the low beam reflective area to form a low beam with a cutoff line. The low beam passes through the lens to form a low beam shape with a cutoff line. Light emitted from the high beam source is reflected by the high beam reflective area to form an ADB high beam. The ADB high beam passes through the lens to form an ADB high beam illumination area. The ADB high beam illumination area and the low beam shape combine to form an ADB high beam shape.

[0008] Furthermore, according to the novel low-cost ADB high beam and low beam integrated module of this utility model, the beam splitter is a single piece made of die-cast aluminum alloy, and the outer surface is provided with an aluminum plating layer.

[0009] Furthermore, the novel low-cost ADB high beam and low beam integrated module according to this utility model also includes a heat sink, on which a first mounting surface and a second mounting surface are provided, and both the first mounting surface and the second mounting surface are inclined at an angle. The first mounting surface is used to mount the low beam light source, and the second mounting surface is used to mount the high beam light source. The low beam light source is mounted on the first mounting surface, such that the optical center of the low beam light source falls on the upper surface of the transverse connecting platform; the high beam light source is mounted on the second mounting surface, such that the optical center of the high beam light source falls on the lower surface of the transverse connecting platform.

[0010] Furthermore, in the novel low-cost ADB high beam and low beam integrated module of this utility model, the front end of the upper surface of the horizontal connecting platform and the front end of the lower surface of the horizontal connecting platform are connected at an angle.

[0011] Furthermore, according to the novel low-cost ADB high beam and low beam integrated module of this utility model, the upper reflective area is provided with a forward-extending extension surface at the front end of the reflective surface on both sides of the transverse connecting platform, and the extension surface is used to expand the illumination width of the low beam pattern to the left and right.

[0012] Furthermore, according to the novel low-cost ADB high beam and low beam integrated module of this utility model, the light source further includes a high beam PCB board and a low beam PCB board, which are electrically connected via a flexible circuit board. The low beam light source is disposed on the low beam PCB board, and the high beam light source is disposed on the high beam PCB board. The high beam PCB board is also provided with connector one and connector two. Connector one is used for electrical connection with an external low beam control system, and connector two is used for electrical connection with an external ADB high beam control system.

[0013] Furthermore, the novel low-cost ADB high beam and low beam integrated module according to this utility model also includes a shielding component, which is disposed on the heat sink and is used to shield and protect the first connector and the second connector.

[0014] Furthermore, according to the novel low-cost ADB high beam and low beam integrated module of this utility model, the shielding component is an integral part including mounting feet, shielding plate one, and pressure plate. The shielding plate one is disposed at the front end of the pressure plate, and the mounting feet are symmetrically disposed on both sides of the pressure plate. The shielding component is fixed to the heat sink by the mounting feet. The pressure plate is used to press the high beam PCB board to fix it to the heat sink. The shielding plate one is used to shield and protect the connector one and connector two.

[0015] Furthermore, the novel low-cost ADB high beam and low beam integrated module according to this utility model also includes a lens bracket, the lens is mounted on the lens bracket and mounted on the heat sink through the lens bracket; the shielding component is also provided with a second shielding plate, the second shielding plate is used to shield and protect the lens bracket to prevent sunlight from burning the lens bracket.

[0016] Furthermore, in the novel low-cost ADB high beam and low beam integrated module of this utility model, the low beam PCB board is fixed to the heat sink by the beam splitter.

[0017] This invention features a simple structure and easy installation. When switching between high and low beam patterns, only the on / off state of the high beam source needs to be controlled, without moving the light shield. The switching speed between high and low beam patterns is faster, the stability of the high and low beam patterns is higher, and no switching noise is generated, effectively solving the problems existing in the prior art. In addition, since there is no need to install a light shield or other transmission structure, the production cost is greatly reduced. Attached Figure Description

[0018] Figure 1 This is a front view of the present invention.

[0019] Figure 2 This is a perspective view of the present invention.

[0020] Figure 3 This is the left view of this utility model.

[0021] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0022] Figure 5 yes Figure 4 Enlarged view of the structure within the dashed box.

[0023] Figure 6 This is an exploded view of the structure of this utility model when the lens and lens holder are removed.

[0024] Figure 7 yes Figure 6 Enlarged view of the structure of the beam splitter.

[0025] Figure 8 yes Figure 6 Enlarged view of the structure of the middle shielding component.

[0026] Figure 9 This is the near-beam light pattern screen illuminance diagram provided by this utility model.

[0027] Figure 10 This is the ADB high beam illumination diagram for the screen provided by this utility model.

[0028] Figure 11 This utility model provides an ADB high beam illuminance diagram with illuminated dark areas on the screen.

[0029] In the picture:

[0030] Lens 1, beam splitter 2, reflective area 21, upper reflective area 211, reflective surface 2111, extended surface 2112, lower reflective area 212, transverse connecting platform 22, upper surface 221, near beam cutoff line forming structure 2211, lower surface 222, light source 3, near beam light source 31, high beam light source 32, high beam PCB board 33, near beam PCB board 34, connector one 35, connector two 36, flexible connector 37, heat sink 4, first mounting surface 41, second mounting surface 42, lens bracket 5, shielding component 6, mounting foot 61, shielding plate one 62, pressure plate 63, shielding plate two 64, limiting mechanism 7, limiting post 71, limiting hole 72, mounting hole 8, mounting post hole 9. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figure 1-11 As shown, a novel low-cost ADB high beam and low beam integrated module includes a lens 1, a beam splitter 2, a light source 3, a heat sink 4, and a lens bracket 5. Both the beam splitter 2 and the light source 3 are mounted on the heat sink 4, with the beam splitter 2 positioned in front of the light source 3. The lens 1 is mounted on the lens bracket 5 and, through the lens bracket 5, on the heat sink 4, so that the beam splitter 2 is positioned between the light source 3 and the lens 1. The light source 3 includes a low beam light source 31 and a high beam light source 32. The light emitted from the low beam light source 31 passes through the beam splitter 2 to form a low beam with a cutoff line. After passing through the lens 1, the low beam forms a low beam shape with a cutoff line at the top. The light emitted from the high beam light source 32 passes through the beam splitter 2 to form an ADB high beam. After passing through the lens 1, the ADB high beam forms an ADB high beam illumination area. The ADB high beam illumination area and the low beam shape combine to form the ADB high beam shape. Specifically, the beam splitter 2 includes a reflective area 21, within which a transverse connecting platform 22 is provided. The transverse connecting platform 22 divides the reflective area 21 into an upper reflective area 211 and a lower reflective area 212. The upper reflective area 211 and the upper surface 221 of the transverse connecting platform 22 form a near beam reflective area. The upper surface 221 of the transverse connecting platform 22 is provided with a near beam cutoff line forming structure 2211. The lower reflective area 212 and the lower surface 222 of the transverse connecting platform 22 form a far beam reflective area. The light emitted by the near beam source 31 is reflected by the near beam reflective area to form a near beam with a cutoff line. After passing through the lens 1, the near beam forms a near beam shape with a cutoff line at the top. The light emitted by the far beam source 32 is reflected by the far beam reflective area to form an ADB far beam. After passing through the lens 1, the ADB far beam forms an ADB far beam illumination area. The ADB far beam illumination area and the near beam shape are combined to form an ADB far beam shape. In this embodiment, since the beam splitter 2 is close to the light source 3, in order to improve the service life of the beam splitter 2, the beam splitter 2 is made of die-cast aluminum alloy with an aluminum-plated layer on its outer surface. This module has a simple structure and is easy to install. When switching between high and low beam patterns, only the on / off state of the high beam light source 32 needs to be controlled, without moving the light shield. The switching speed between high and low beam patterns is faster, the stability of high and low beam patterns is higher, and no switching noise is generated, which can effectively solve the problems existing in the prior art. In addition, since there is no need to install a light shield or other transmission structure, the production cost is greatly reduced.

[0033] To improve the quality of the low beam and ADB high beam patterns, the heat sink 4 is provided with a first mounting surface 41 and a second mounting surface 42, both of which are inclined at an angle. The first mounting surface 41 is used to mount the low beam light source 31, and the second mounting surface 42 is used to mount the high beam light source 32. The low beam light source 31 is mounted on the first mounting surface 41, with its optical center falling on the upper surface 221 of the transverse connecting platform 22. The high beam light source 32 is mounted on the second mounting surface 42, with its optical center falling on the lower surface 222 of the transverse connecting platform 22. By tilting the angle, the optical centers of both the low beam light source 31 and the high beam light source 32 can fall on the transverse connecting platform 22, thereby making the brightest point in the low beam pattern closer to the cutoff line in the low beam pattern, further improving the quality of the low beam pattern; and making the brightest point in the ADB high beam illumination area located on or near the cutoff line in the low beam pattern, further improving the distribution effect of the ADB high beam pattern. Specifically, the first mounting surface 41 and the second mounting surface 42 are inclined at an angle, forming an angle of 95 to 120 degrees between them. This results in better quality of the near beam and ADB high beam patterns, and facilitates the production and processing of the heat sink 4. In this embodiment, the first mounting surface 41 and the second mounting surface 42 are inclined at an angle, forming an angle of 109 degrees between them. This yields the best quality of the near beam and ADB high beam patterns, and also facilitates the demolding of the heat sink 4.

[0034] To improve the quality of the ADB high beam pattern and prevent dark areas at the junction of the ADB high beam and low beam patterns, the front end of the upper surface 221 of the transverse connecting platform 22 and the front end of the lower surface 222 of the transverse connecting platform 22 are connected at an angle. This angle allows the upper surface 221 and the lower surface 222 to gradually approach each other, thereby achieving light fusion at the junction of the ADB high beam and low beam patterns and avoiding dark areas caused by the thickness of the transverse connecting platform 22 obstructing light.

[0035] To improve the quality of the near beam pattern, the upper reflective area 211 has forward-extending extension surfaces 2112 at the front ends of the reflective surfaces 2111 on both sides of the transverse connecting platform 22. These extension surfaces 2112 are used to expand the left and right illumination width of the near beam pattern. In this embodiment, the upper reflective area 2111 has forward-extending extension surfaces 2112 at the front ends of the reflective surfaces 2111 on both sides of the transverse connecting platform 22. By increasing the reflective area of ​​the reflective surfaces 2111 on both sides through the extension surfaces 2112, the left and right illumination width of the near beam pattern is expanded, and the resulting left and right illumination width range of the near beam pattern can reach -45 to 45 degrees.

[0036] Furthermore, the light source 3 also includes a high beam PCB board 33 and a low beam PCB board 34, which are electrically connected. The low beam light source 31 is disposed on the low beam PCB board 34, and the high beam light source 32 is disposed on the high beam PCB board 33. The high beam PCB board 33 is also provided with connector 1 35 and connector 2 36. Connector 1 35 is used for electrical connection with an external low beam control system, and connector 2 36 is used for electrical connection with an external ADB high beam control system. Specifically, the high beam PCB board 33 and the low beam PCB board 34 are electrically connected by a flexible connector 37, which improves stability. The low beam light source 31 includes multiple low beam LEDs, which are disposed on the low beam PCB board 34 and mounted on the first mounting surface 41 via the low beam PCB board 34. The high beam light source 32 includes multiple high beam LEDs, which are disposed on the high beam PCB board 33 and mounted on the second mounting surface 42 via the high beam PCB board 33. In this embodiment, the low beam source 31 includes seven low beam LEDs, and the high beam source 32 includes twelve high beam LEDs. When a low beam pattern is required, the low beam control system controls the seven low beam LEDs to operate. When an ADB high beam pattern is required, the low beam control system controls the seven low beam LEDs to operate, while the external ADB high beam control system controls all twelve high beam LEDs to operate, thus obtaining the ADB high beam pattern. In addition, the external ADB high beam control system can control some high beam LEDs to turn off according to the road scene, thus obtaining the required ADB high beam pattern with dark areas, without causing glare to road users in front of the vehicle. When the module is installed in pairs on the vehicle, in order to improve the left and right illumination width of the ADB high beam pattern, the position of the twelve high beam LED light sources can be set according to the installation position of the module. When the module is installed on the left, the twelve high beam LED light sources are set on the high beam PCB board 33 and offset to the left; when the module is installed on the right, the twelve high beam LED light sources are set on the high beam PCB board 33 and offset to the right. When the vehicle is driving at night and using the ADB high beam pattern, both modules work simultaneously to obtain a wide left and right illumination area of ​​the ADB high beam. This ADB high beam illumination area, combined with the low beam pattern, forms a wide left and right illumination ADB high beam pattern, thereby improving driving safety.

[0037] To prevent sunlight from burning connector 35 and connector 36, a shielding component 6 is also included. The shielding component 6 is mounted on the heat sink 4 and serves to shield connector 35 and connector 36, thereby preventing sunlight from burning them. It also prevents collisions and further improves the stability of connector 35 and connector 36. Specifically, the shielding component 6 is a single piece including mounting feet 61, a shielding plate 62, and a pressure plate 63. The shielding plate 62 is located at the front end of the pressure plate 63, and mounting feet 61 are symmetrically arranged on both sides of the pressure plate 63. The shielding component 6 is fixed to the heat sink 4 via the mounting feet 61. The pressure plate 63 presses against the high-beam PCB board 33 to fix it to the heat sink 4, and the shielding plate 62 provides shielding for connector 35 and connector 36. In this embodiment, the shielding component 6 is made of galvanized steel sheet. The shielding plate 62 shields and protects the connectors 35 and 36 from sunlight erosion, further improving the module's lifespan. The pressure plate 63 presses against the high-beam PCB board 33 to fix it to the heat sink 4, making installation convenient and quick, and saving production costs. Furthermore, to improve installation accuracy, a limiting mechanism 7 is provided between the high-beam PCB board 33 and the second mounting surface 42. The limiting mechanism 7 limits the high-beam PCB board 33 to the second mounting surface 42, and then the high-beam PCB board 33 is fixed to the heat sink 4 by the shielding component 6. Alternatively, a limiting mechanism 7 is also provided between the shielding component 6 and the heat sink 4, limiting the shielding component 6 to the heat sink 4, and then screws are used to fix the shielding component 6 to the heat sink 4. The limiting mechanism 7 includes a limiting post 71 and a limiting hole 72. The heat sink 4 is provided with a limiting post 71, and the mounting foot 61 and the high beam PCB board 33 are respectively provided with limiting holes 72. The limiting post 71 is inserted into the limiting hole 72 on the high beam PCB board 33, so that the high beam PCB board 33 is limited on the heat sink 4. The limiting post 71 is inserted into the limiting hole 72 on the mounting foot 61, so that the shielding part 6 is limited on the heat sink 4 and located above the high beam PCB board 33. Then, a screw is used to pass through the mounting hole 8 provided on the mounting foot 61 and connect with the mounting post hole 9 provided on the heat sink 4, thereby fixing the high beam PCB board 33 and the shielding part 6 on the heat sink 4 at the same time, making the installation convenient and quick.

[0038] To prevent sunlight from burning the lens bracket 5, a second shielding plate 64 is provided on the mounting foot 61. The second shielding plate 64 is used to shield the lens bracket 5 to prevent sunlight from burning the lens bracket 5 and further improve the service life of the module.

[0039] To improve installation efficiency, the low beam PCB board 34 is fixed to the heat sink 4 via the beam splitter 2. Specifically, the low beam PCB board 34 is first placed on the first mounting surface 41, and then the beam splitter 2 is placed on the low beam PCB board 34. At this time, the low beam reflection area is located in front of the low beam PCB board 34, and the high beam reflection area is located in front of the high beam PCB board 33. Then, screws are used to connect the beam splitter 2 through the mounting holes 8 provided on the beam splitter 2 and the mounting post holes 9 provided on the heat sink 4, thereby fixing the beam splitter 2 to the heat sink 4. The beam splitter 2 is also used to fix the low beam PCB board 34 to the heat sink 4. The installation of the low beam PCB board 34 and the beam splitter 2 can be completed in one step, which is convenient and quick, improving production efficiency. To improve installation accuracy, a limiting mechanism 7 is provided between the beam splitter 2 and the heat sink 4. The beam splitter 2 is limited to the heat sink 4 by the limiting mechanism 7, and the low beam PCB board 34 is limited to the heat sink 4 by the limiting mechanism 7.

Claims

1. A novel low-cost ADB (Automatic Beam Control) module integrating high beam and low beam, characterized in that, The system includes a lens, a beam splitter, and a light source. The beam splitter is positioned between the light source and the lens. The light source includes a low-beam light source and a high-beam light source. The beam splitter includes a reflective area, within which a transverse connecting platform is provided. The transverse connecting platform divides the reflective area into an upper reflective area and a lower reflective area. The upper reflective area and the upper surface of the transverse connecting platform form a low-beam reflective area. The upper surface of the transverse connecting platform has a low-beam beam cutoff line formation structure. The lower reflective area and the lower surface of the transverse connecting platform form a high-beam reflective area. Light emitted from the low-beam light source is reflected by the low-beam reflective area to form a low-beam beam with a cutoff line. The low-beam beam, after passing through the lens, forms a low-beam beam shape with a cutoff line. Light emitted from the high-beam light source is reflected by the high-beam reflective area to form an ADB high-beam beam. The ADB high-beam beam, after passing through the lens, forms an ADB high-beam illumination area. The ADB high-beam illumination area and the low-beam beam shape combine to form an ADB high-beam beam shape.

2. The novel low-cost ADB high beam and low beam integrated module according to claim 1, characterized in that, The beam splitter is a single piece made of die-cast aluminum alloy, with an aluminum plating layer on its outer surface.

3. The novel low-cost ADB high beam and low beam integrated module according to claim 1, characterized in that, It also includes a heat sink, which has a first mounting surface and a second mounting surface, both of which are inclined at an angle. The first mounting surface is used to mount the low beam light source, and the second mounting surface is used to mount the high beam light source. The low beam light source is mounted on the first mounting surface, such that the optical center of the low beam light source falls on the upper surface of the transverse connecting platform; the high beam light source is mounted on the second mounting surface, such that the optical center of the high beam light source falls on the lower surface of the transverse connecting platform.

4. A novel low-cost ADB high beam and low beam integrated module according to claim 3, characterized in that, The front end of the upper surface of the horizontal connecting platform is connected at an angle to the front end of the lower surface of the horizontal connecting platform.

5. A novel low-cost ADB high beam and low beam integrated module according to claim 1, characterized in that, The upper reflective area is provided with a forward-extending extension surface at the front end of the reflective surface on both sides of the transverse connecting platform. The extension surface is used to expand the illumination width of the near beam pattern to the left and right.

6. A novel low-cost ADB high beam and low beam integrated module according to claim 3, characterized in that, The light source also includes a high beam PCB board and a low beam PCB board, which are electrically connected via a flexible circuit board. The low beam light source is disposed on the low beam PCB board, and the high beam light source is disposed on the high beam PCB board. The high beam PCB board is also provided with connector one and connector two. Connector one is used for electrical connection with an external low beam control system, and connector two is used for electrical connection with an external ADB high beam control system.

7. A novel low-cost ADB high beam and low beam integrated module according to claim 6, characterized in that, It also includes a shielding component, which is disposed on the heat sink and is used to shield and protect the first connector and the second connector.

8. A novel low-cost ADB high beam and low beam integrated module according to claim 7, characterized in that, The shielding component is an integral piece including mounting feet, shielding plate one, and pressure plate. The shielding plate one is disposed at the front end of the pressure plate, and the mounting feet are symmetrically disposed on both sides of the pressure plate. The shielding component is fixed to the heat sink by the mounting feet. The pressure plate is used to press against the high beam PCB board to fix it to the heat sink. The shielding plate one is used to shield and protect connector one and connector two.

9. A novel low-cost ADB high beam and low beam integrated module according to claim 8, characterized in that, It also includes a lens bracket, on which the lens is mounted and on the heat sink via the lens bracket; the shielding member is also provided with a second shielding plate, which is used to shield and protect the lens bracket from sunlight burning the lens bracket.

10. A novel low-cost ADB high beam and low beam integrated module according to claim 6, characterized in that, The low beam PCB board is fixed to the heat sink via the beam splitter.

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