Self-balancing high beam illumination module and vehicle lamp

Abstract

The utility model discloses a self-balancing high-beam lighting module and a vehicle lamp, and aims to overcome the defect that a self-adaptive algorithm fails due to the fact that the conventional vehicle lighting ADB system does not consider the roll of a two-wheeled vehicle during turning. The LED lamp comprises a driving unit, a high-beam light source unit, a control unit and a lens assembly, the high-beam light source unit comprises a radiator and a high-beam light source, the high-beam light source is arranged on a PCB, the PCB is fixedly connected with the radiator, the driving unit comprises a driver, a center shaft of the radiator and an output shaft of the driver are coaxially arranged and are in transmission connection, and the control unit is connected with the driving unit. The control unit comprises a controller and a gyroscope, and the controller is electrically connected with the gyroscope, the PCB and the driver. The driver only drives the high-beam light source and the radiator, when the two-wheeled vehicle steers, the high-beam illumination range is adjusted, the high-beam light irradiates the steering inner side, the visual field of the far turning inner side is known in advance, and the driving safety of the vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of two-wheeled vehicle lighting, and more specifically, it relates to a self-balancing high beam lighting module and vehicle headlight. Background Technology

[0002] ADB (Adaptive Driving Beam) technology aims to improve driving safety and reduce glare for other road users by intelligently controlling the beam pattern of headlights. The core of ADB technology lies in its ability to dynamically adjust the brightness, direction, and shape of the headlight beam based on road conditions, vehicles ahead, and environmental conditions. This ensures the driver's visibility while avoiding glare interference to oncoming vehicles or pedestrians. An ADB system typically consists of multiple LED arrays, each with independently controllable brightness. When sensors (such as cameras and radar) detect a vehicle or obstacle ahead, the system automatically adjusts the beam's brightness and direction, projecting light onto open areas of the road while reducing or blocking illumination from other vehicles. This technology not only provides a wider illumination range but also significantly reduces glare, thereby lowering the risk of nighttime driving accidents.

[0003] Currently, adaptive high beam systems often only switch directly between high and low beams for motor vehicles. When applied to two-wheeled vehicles, this ignores the fact that the adaptive high beams tilt when the vehicle turns. This causes the original adaptive algorithm to malfunction because the algorithm is designed to recognize vehicles or pedestrians when they are upright. Cars, with four wheels, do not tilt when turning. However, when a two-wheeled vehicle turns, the high beams tilt, making it unable to correctly identify vehicles or pedestrians ahead and creating a hazard.

[0004] A self-balancing high beam lighting module and vehicle headlight are proposed, which can adjust the high beam lighting range when a two-wheeled vehicle turns, illuminating the inside of the turn, and providing advance knowledge of the visibility of the inside of the turn in the distance. Utility Model Content

[0005] This invention overcomes the shortcomings of existing vehicle lighting ADB systems, which do not consider the lateral tilt of two-wheeled vehicles when turning, leading to the failure of the adaptive algorithm. It provides a self-balancing high beam lighting module that can adjust the high beam lighting range when a two-wheeled vehicle turns, illuminating the inside of the turn, and providing advance knowledge of the visibility on the inside of the turn, thereby improving vehicle driving safety.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A self-balancing high beam lighting module includes a drive unit, a high beam light source unit, a control unit, and a lens assembly. The high beam light source unit includes a heat sink and a high beam light source, which is mounted on a PCB board. The PCB board and the heat sink are fixedly connected. The drive unit includes a driver, and the central axis of the heat sink is coaxially arranged and drivenly connected to the output shaft of the driver. The control unit includes a controller and a gyroscope, and the controller is electrically connected to the gyroscope, the PCB board, and the driver.

[0008] The drive unit drives the high beam unit to rotate, while the lens assembly remains relatively stationary, thus reducing the weight of the rotating components and making the rotation start-up and braking phases more sensitive. The start-up and rotation angle of the drive unit are achieved based on the control signal input from the controller, which generates corresponding control signals based on the signal feedback from the gyroscope.

[0009] The high beam pattern of a two-wheeled vehicle is elliptical. The major axis of this ellipse is horizontal, and the minor axis is vertical. When the two-wheeled vehicle turns, it leans towards the apex of the curve, affecting the illumination range of the high beam pattern on that side, resulting in a shorter illumination distance and compromising vehicle safety. Therefore, this application addresses this issue by incorporating a rotatable high beam unit that adapts to the vehicle's leaning and turning motion, maintaining the integrity of the high beam pattern and ensuring adequate illumination of the legally compliant distance inside the apex of the curve, providing sufficient visibility and improving vehicle safety.

[0010] Preferably, the heat sink includes a first heat sink and a second heat sink. The second heat sink includes a rotating cylinder formed by rotating around the output shaft as a central axis and a heat dissipation plate disposed at the end of the rotating cylinder away from the driver. The first heat sink is cylindrical and has countersunk holes and several hollow slots formed radially in the sidewall direction. Adjacent hollow slots form heat dissipation fins. The countersunk holes are located on both ends of the first heat sink. The countersunk hole facing the second heat sink is used for inserting the second heat sink, and the countersunk hole at the other end is used for drive connection to the output shaft of the driver. The end faces of the heat sink and the first heat sink are fixedly connected by fasteners. The driver rotates the PCB board with the high-beam light source unit by driving the heat sink. To reduce production and assembly difficulty, separate heat sinks, namely the first heat sink and the second heat sink, are provided.

[0011] Preferably, the rotary drum is frustum-shaped, and its diameter gradually decreases from the end closest to the heat sink to the end furthest from the heat sink. The countersunk hole of the first heat sink facing the second heat sink gradually decreases from the outside to the inside, which has a guiding effect and is easy to assemble.

[0012] Preferably, the outer wall of the rotary cylinder is fitted to the wall of the countersunk hole of the first radiator facing the second radiator. This structure increases the contact area and improves heat transfer efficiency.

[0013] Preferably, the lens assembly includes a first lens holder, a first lens, a second lens holder, a second lens, and a third lens holder. The first lens holder and the third lens holder are fixedly connected, and the third lens holder is disposed between the first lens holder and the third lens holder. The first lens abuts against the first lens between the first lens holder and the second lens holder, and the second lens abuts against the second lens between the second lens holder and the third lens. This structure enables the positioning of the first lens and the second lens.

[0014] Preferably, the first lens has a first positioning skirt, and the first lens holder has a concave fold. The sidewall of the concave fold has an introductory slope that is larger on the outside and smaller on the inside. The first positioning skirt is inserted into the concave fold, and the bottom surface of the concave fold is in contact with the bottom surface of the first positioning skirt. The first positioning skirt and the bottom surface of the concave fold are the same size. The second lens holder abuts against the top surface of the first positioning skirt. The introductory slope of the sidewall of the concave fold improves the convenience of inserting the first lens and also enables the concave fold to position the first lens, limiting its displacement on the plane where the bottom surface is located.

[0015] Preferably, the second lens has a second positioning skirt, and the third lens holder has an upwardly convex fold. The sidewall of the upwardly convex fold fits against the sidewall of the second positioning skirt, and the top surface of the upwardly convex fold fits against the top surface of the second positioning skirt. The second lens holder abuts against the bottom surface of the second positioning skirt. The positioning of the second lens is achieved by positioning the second positioning skirt through the upwardly convex fold.

[0016] Preferably, the first and second lenses are rotating bodies about the output axis. Regardless of how the high beam light source unit rotates, the generated light pattern remains stable and undistorted.

[0017] Preferably, the driver is one of the following: DC motor, AC motor, stepper motor, servo motor, or brushless motor.

[0018] A vehicle light includes a self-balancing high beam lighting module as described above, and also includes a support base, a lens assembly, and a driver mounted on the support base.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] (1) The driver only drives the high beam light source and heat sink, with lower rotational inertia and more sensitive start and stop;

[0021] (2) Set the first lens and the second lens to remain relatively stationary, maintain relative stability, and maintain the stability of the light pattern. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present invention;

[0023] Figure 2This is a cross-sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the first heat sink of this utility model;

[0025] In the picture:

[0026] PCB board 1, high beam light source 2, first heat sink 3, second heat sink 4, heat sink plate 5, rotary cylinder 6, hollow groove 7, countersunk hole 8, heat sink fins 9, first lens bracket 10, first lens 11, second lens bracket 12, second lens 13, third lens bracket 14, first positioning skirt 15, concave fold 16, convex fold 17, second positioning skirt 18, driver 19, support base 20. Detailed Implementation

[0027] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements in this disclosure, and do not specifically refer to any component or element in this disclosure, nor should they be construed as limiting this disclosure.

[0031] In this disclosure, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can determine the specific meaning of these terms in this disclosure based on the specific circumstances, and they should not be construed as limitations on this disclosure.

[0032] Example:

[0033] A self-balancing high beam lighting module, reference Figure 1 and Figure 2 As shown in Figure 2 , it includes a driving unit, a high-beam light source 2 unit, a control unit, and a lens assembly. The high-beam light source 2 unit includes a radiator and a high-beam light source 2. The high-beam light source 2 is arranged on the PCB board 1, and the PCB board 1 is fixedly connected to the radiator. The driving unit includes a driver 19. The central axis of the radiator is coaxially arranged with the output shaft of the driver 19 and is in transmission connection. The control unit includes a controller and a gyroscope (installed at other parts of the vehicle with this high-beam lighting module and not shown in the figure). The controller is electrically connected to the gyroscope, the PCB board 1, and the driver 19.

[0034] Refer Figure 2 and Figure 3 As shown in Figure 3 , the radiator includes a first radiator 3 and a second radiator 4, and the first radiator 3 and the second radiator 4 are assembled to form the radiator. The second radiator 4 includes a rotating cylinder 6 formed by rotating around the output shaft as the central axis and a heat dissipation plate 5 arranged at one end of the rotating cylinder 6 away from the driver 19. The first radiator 3 is cylindrical. The first radiator 3 is provided with a counterbore 8 and a plurality of hollow grooves 7 opened in the radial direction along the side wall direction. Heat dissipation fins 9 are formed between adjacent hollow grooves 7. The counterbore 8 is arranged on both end faces of the first radiator 3. The counterbore 8 facing the second radiator 4 is used for inserting the second radiator 4, and the counterbore 8 at the other end is used for transmitting and connecting the output shaft of the driver 19. The heat dissipation plate 5 and the end face of the first radiator 3 are fixedly connected by fasteners. The driver 19 drives the radiator to rotate the PCB board 1 with the high-beam light source 2 unit. In order to reduce the production and assembly difficulty, a split radiator, that is, the first radiator 3 and the second radiator 4, is provided.

[0035] Among them, the rotating cylinder 6 is frustum-shaped. From the end close to the heat dissipation plate 5 to the end far from the heat dissipation plate 5, the diameter of the rotating cylinder 6 gradually decreases. The counterbore 8 of the first radiator 3 facing the second radiator 4 gradually decreases from the outside to the inside, having a guiding effect and being easy to assemble. The outer wall of the rotating cylinder 6 fits with the hole wall of the counterbore 8 of the first radiator 3 facing the second radiator 4. The said structure increases the contact area and improves the heat transfer efficiency. In some embodiments, the inner wall surface of the counterbore 8 of the first radiator 3 facing the second radiator 4 is coated with a heat-conducting agent before assembly, and the heat-conducting agent can be silicone grease.

[0036] Refer Figure 1 and Figure 2As shown, the lens assembly includes a first lens holder 10, a first lens 11, a second lens holder 12, a second lens 13, and a third lens holder 14. The first lens holder 10 and the third lens holder 14 are fixedly connected, and the third lens holder 14 is disposed between the first lens holder 10 and the third lens holder 14. The first lens holder 10 and the second lens holder 12 abut against the first lens 11, and the second lens holder 12 and the third lens abut against the second lens 13. This structure enables the positioning of the first lens 11 and the second lens 13. Specifically, the first lens 11 is provided with a first positioning skirt 15, and the first lens holder 10 is provided with a concave fold 16. The sidewall of the concave fold 16 has an introductory slope that is larger on the outside and smaller on the inside. The first positioning skirt 15 is inserted into the concave fold 16, and the concave fold 16 is in contact with the bottom surface of the first positioning skirt 15. The first positioning skirt 15 and the bottom surface of the concave fold 16 are the same size. The second lens holder 12 abuts against the top surface of the first positioning skirt 15. The concave fold 16 has a slope that is wider on the outside and narrower on the inside, which improves the ease of inserting the first lens 11 and also positions the first lens 11 with the concave fold 16, limiting its displacement on the plane of its bottom end. The second lens 13 is provided with a second positioning skirt 18, and the third lens support 14 is provided with an upward convex fold 17. The sidewall of the upward convex fold 17 fits against the sidewall of the second positioning skirt 18, and the top surface of the upward convex fold 17 fits against the top surface of the second positioning skirt 18. The second lens support 12 abuts against the bottom surface of the second positioning skirt 18. The positioning of the second positioning skirt 18 is achieved by positioning the second positioning skirt with the upward convex fold 17.

[0037] The first lens 11 and the second lens 13 are rotating bodies about the output axis. No matter how the high beam source unit 2 rotates, the generated light pattern remains stable and undistorted.

[0038] The driver 19 is one of the following: DC motor, AC motor, stepper motor, servo motor, or brushless motor.

[0039] A vehicle headlight includes a self-balancing high beam lighting module as described above, and also includes a support base 20, a lens assembly, and a driver 19 mounted on the support base 20.

[0040] The drive unit drives the high beam light source unit 2 to rotate, while the lens assembly remains relatively stationary, thereby reducing the weight of the rotating components and making the rotation start and braking phases more sensitive. The start and rotation angle of the drive unit are achieved based on the control signal input from the controller, which generates corresponding control signals based on the signal feedback from the gyroscope.

[0041] The high beam pattern of a two-wheeled vehicle is elliptical. The major axis of this ellipse is horizontal, and the minor axis is vertical. When the two-wheeled vehicle turns, it leans towards the apex of the curve, affecting the illumination range of the high beam pattern on that side, resulting in a shorter illumination distance and compromising vehicle safety. Therefore, this application addresses this by incorporating a rotatable high beam light source unit 2. This unit adaptively rotates when the two-wheeled vehicle turns and leans, maintaining the integrity of the high beam pattern and ensuring sufficient illumination of the area inside the apex of the curve, meeting legal regulations and providing adequate visibility to improve vehicle safety.

[0042] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A self-balancing high beam lighting module, characterized in that, It includes a drive unit, a high beam light source unit, a control unit, and a lens assembly. The high beam light source unit includes a heat sink and a high beam light source, which is mounted on a PCB board. The PCB board and the heat sink are fixedly connected. The drive unit includes a driver, and the central axis of the heat sink is coaxially arranged and driven by the output shaft of the driver. The control unit includes a controller and a gyroscope, and the controller is electrically connected to the gyroscope, the PCB board, and the driver.

2. The self-balancing high beam lighting module according to claim 1, characterized in that, The radiator includes a first radiator and a second radiator. The second radiator includes a rotating cylinder formed by rotating around the output shaft as the central axis and a heat dissipation plate disposed at the end of the rotating cylinder away from the driver. The first radiator is cylindrical and has countersunk holes and several hollow slots opened radially in the side wall direction. Adjacent hollow slots form heat dissipation fins. The countersunk holes are disposed on both ends of the first radiator. The countersunk hole facing the second radiator is used to insert the second radiator, and the countersunk hole at the other end is used to drive the output shaft of the driver. The end faces of the heat dissipation plate and the first radiator are fixedly connected by fasteners.

3. A self-balancing high-beam lighting module according to claim 2, characterized in that, The rotating cylinder is truncated cone-shaped, and its diameter gradually decreases from the end closest to the heat sink to the end furthest from the heat sink. The countersunk hole of the first heat sink facing the second heat sink gradually decreases from the outside to the inside.

4. A self-balancing high-beam lighting module according to claim 3, characterized in that, The outer wall of the rotary drum is in contact with the wall of the countersunk hole of the first radiator facing the second radiator.

5. A self-balancing high beam lighting module according to claim 1, characterized in that, The lens assembly includes a first lens holder, a first lens, a second lens holder, a second lens, and a third lens holder. The first lens holder and the third lens holder are fixedly connected, and the third lens holder is disposed between the first lens holder and the third lens holder. The first lens abuts against the first lens between the first lens holder and the second lens holder, and the second lens abuts against the second lens between the second lens holder and the third lens.

6. A self-balancing high-beam lighting module according to claim 5, characterized in that, The first lens has a first positioning skirt, and the first lens bracket has a concave fold. The side wall of the concave fold has an introductory slope that is larger on the outside and smaller on the inside. The first positioning skirt is inserted into the concave fold, and the concave fold is in contact with the bottom surface of the first positioning skirt. The first positioning skirt and the bottom surface of the concave fold are the same size. The second lens bracket abuts against the top surface of the first positioning skirt.

7. A self-balancing high-beam lighting module according to claim 5, characterized in that, The second lens is provided with a second positioning skirt, and the third lens bracket is provided with an upward convex fold. The side wall of the upward convex fold is in contact with the side wall of the second positioning skirt, the upward convex fold is in contact with the top surface of the second positioning skirt, and the second lens bracket abuts against the bottom surface of the second positioning skirt.

8. A self-balancing high beam lighting module according to claim 1, characterized in that, The first lens and the second lens are rotating bodies about the output shaft as the central axis.

9. A self-balancing high beam lighting module according to claim 1, characterized in that, The driver can be one of the following: DC motor, AC motor, stepper motor, servo motor, or brushless motor.

10. A vehicle headlight, characterized in that, The device includes a self-balancing high beam lighting module as described in any one of claims 1 to 9, and further includes a support base, a lens assembly, and a driver mounted on the support base.

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