Self-balancing self-adaptive high beam and vehicle

Abstract

The self-balancing self-adaptive high beam comprises a supporting base, a driving unit and an illumination unit, the illumination unit is used for generating illumination light distribution, one end of the driving unit is fastened to the supporting base, and the illumination unit sequentially comprises a radiator, a PCB, a light source, a first lens, a shading support, a second lens and a lens support away from the supporting base. The light source is provided with a plurality of LED lamp beads, and the inner surface or the outer surface of the first lens is provided with convex hulls in one-to-one correspondence with the LED lamp beads. The output shaft of the driving unit is in transmission connection with the radiator, and the rotation center of the output shaft of the driving unit coincides with the central optical axis X of the second lens, so that the illumination light is distributed in a pivoted mode. The ADB is provided with the self-balancing motor, when the high beam fixed to the front of the two-wheeled vehicle inclines, the motor drives the lighting unit to rotate in the opposite direction, the high beam light type can be parallel to the road surface all the time, and then the problem that when an existing ADB is applied to the two-wheeled vehicle, intelligent anti-dazzling cannot be effectively achieved is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of car light, specifically relates to a self -balancing adaptive high beam and vehicle. BACKGROUND

[0002] ADB (Adaptive Driving Beam) is a system that uses high-precision cameras and intelligent algorithms to monitor the traffic environment in front of the vehicle in real time by integrating advanced visual perception technology. ADB can automatically identify and track the positions of oncoming and opposite vehicles, pedestrians, etc., and analyze their positions and distances relative to the vehicle in a timely manner. It automatically turns off the light sources that cause glare to the oncoming vehicles and pedestrians, as shown in Figure 1 .

[0003] As shown in Figure 2 , 101 and 102 represent the edges and center lines of the road, respectively, and 103 is a two-wheeled vehicle. 104 and 1041 represent the high beam light pattern and the sub-area in the high beam light pattern, respectively. A two-wheeled vehicle (such as a motorcycle, an electric motorcycle, an electric scooter, etc.) is provided with an ADB high beam at the front end. The ADB high beam can provide illumination in poor light conditions, thereby providing the driver with a clear view of the road ahead. The illumination area of the ADB high beam can be divided into many small areas, each controlled by a different optical system or multiple light sources, and the same optical system controls. When a pedestrian or vehicle appears in front, the control module of the ADB high beam can monitor which light sources will cause glare to the opposite side, so it can automatically turn off some light sources. However, in the case of turning, as shown in Figure 3 , the ADB high beam will tilt with the vehicle towards the inside of the turn. At this time, the illumination area also tilts. The original pedestrian or vehicle in front of the road only occupies one or two blocks in the illumination area, but when it tilts, it will increase to two or more blocks, and the extra few blocks actually only have a small part, so the illumination area is unnecessarily reduced. SUMMARY

[0004] In view of the above prior art, the utility model aims to provide a self-balancing adaptive high beam, which aims to solve the above problems.

[0005] In the first aspect, the application provides a self-balancing adaptive high beam, which comprises a support base, a driving unit and an illumination unit. The illumination unit is used to generate an illumination light distribution. One end of the driving unit is fastened to the support base. The illumination unit, away from the support base, comprises, in sequence, a heat sink, a PCB board, a light source, a first lens, a light-shielding bracket, a second lens and a lens bracket. The light source has a plurality of LED lamp beads, and the first lens has a convex hull corresponding to each LED lamp bead on its inner or outer surface.

[0006] The output shaft of the driving unit is in transmission connection with the heat sink, and the rotation center of the output shaft of the driving unit coincides with the central optical axis X of the second lens, so as to pivot the illumination light distribution.

[0007] Preferably, the LED lamp beads are evenly distributed on the PCB board, and at least two rows of LED lamp beads are provided.

[0008] Preferably, the convex hulls have a size greater than that of the LED lamp beads, and have a spacing between the convex hulls.

[0009] Preferably, part of the light emitted by the LED lamp beads is refracted out by the corresponding convex hull, and part is reflected back by the area other than the corresponding convex hull.

[0010] Preferably, the driving unit is an electric machine, in particular, the electric machine includes a direct current motor, an alternating current motor, a stepping motor, a servo motor, and a brushless motor.

[0011] Preferably, the self-balancing adaptive high beam further comprises a gyroscope and a control unit, the gyroscope is arranged on the control unit, and is used to detect the inclination angle of the self-balancing adaptive high beam and feed back the inclination angle to the control unit, and the control unit is used to receive the inclination angle fed back by the gyroscope and control the driving unit to rotate by the same angle in the opposite direction of the rotation angle.

[0012] Preferably, the self-balancing adaptive high beam further comprises a bottom shell and a lampshade, the lampshade is in fastening connection with the bottom shell and defines a containing cavity together with the bottom shell, and the containing cavity is used to contain the support base, the driving unit, the illumination unit, and the control unit.

[0013] In a second aspect, the application further provides a vehicle comprising a vehicle body and the self-balancing adaptive high beam as described in the first aspect.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The prior art is generally a system in which the output shaft of the motor drives a large gear through a small gear, which introduces an additional mechanical transmission link. This transmission mode can introduce additional dynamic response delays due to the meshing of the gears, the friction of the bearings, and the natural frequency of the mechanical system. In contrast, the motor directly drives the light-type baffle, which can provide faster dynamic response because it eliminates these mechanical transmission links. The direct drive system generally has higher system rigidity, which means that under a given input, the system produces smaller displacement or rotation, thereby achieving more precise control. High-rigidity systems generally have faster response speed because they are more resistant to load changes. The driving unit of the present scheme is coaxial with the rotatable lighting unit, and the coaxial design can reduce or eliminate energy loss during transmission because it does not need to transmit power through additional transmission components such as belts, chains, gears, etc.

[0016] The motor of the present application is self-balancing. When the high beam light fixed in front of the two-wheeled vehicle is tilted, the motor drives the lighting unit to rotate in the opposite direction, so that the high beam light type is always parallel to the road surface, thereby solving the problem that the existing ADB cannot effectively realize intelligent anti-glare when applied to two-wheeled vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the embodiments of the present application will become more readily understood from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, embodiments of the present application are illustrated by way of example and not limitation in which:

[0018] Figure 1 is a schematic diagram of the existing adaptive high beam system of a four-wheeled vehicle;

[0019] Figure 2 is a schematic diagram of the high beam light type of a two-wheeled vehicle;

[0020] Figure 3 is a schematic diagram of the high beam light type when the two-wheeled vehicle is turning;

[0021] Figure 4 is an exploded view of the self-balancing adaptive high beam light provided by the present application;

[0022] Figure 5 is a cross-sectional view of the self-balancing adaptive high beam light provided by the present application;

[0023] Figure 6 is a light ray diagram of the self-balancing adaptive high beam light provided by the present application;

[0024] Figure 7 is a schematic diagram of the first lens provided by the present application;

[0025] Figure 8This is another embodiment provided by the present utility model;

[0026] Figure 9 A schematic diagram of the first lens according to another embodiment of the present invention;

[0027] Figure 10 A schematic diagram of a PCB board for another embodiment of this utility model. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] An electric motor, also known as a motor or electric motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. An electric motor typically consists of a stator and a rotor. The stator includes a stator core and coil windings wound around the stator core, while the rotor includes a shaft and a rotor core fitted around the shaft. The outer edge of the rotor core is equipped with permanent magnets. Example

[0035] like Figure 4 and Figure 5 As shown, the device includes a support base 1, a drive unit 2, and an illumination unit 3. The illumination unit 3 is used to generate illumination light distribution. One end of the drive unit 2 is fixed to the support base 1. The illumination unit 3, away from the support base 1, includes a heat sink 31, a PCB board 32, a light source 33, a first lens 34, a light shielding bracket 35, a second lens 36, and a lens bracket 37 in sequence. The light source 33 has multiple LED beads, and the inner or outer surface of the first lens 34 has protrusions 341 corresponding to the multiple LED beads. The output shaft of the drive unit 2 is connected to the heat sink 31, and the rotation center of the output shaft of the drive unit 2 coincides with the central optical axis X of the second lens 36, thereby pivoting the illumination light distribution.

[0036] The self-balancing adaptive high beam also includes a gyroscope and a control unit 4. The gyroscope is mounted on the control unit 4 and is used to detect the tilt angle of the self-balancing adaptive high beam and feed the tilt angle back to the control unit 4. The control unit is used to receive the tilt angle fed back by the gyroscope and control the drive unit 2 to rotate by the same angle in the opposite direction of the rotation angle.

[0037] The support base 1 is located above the control unit 4 and is fixed to the support base 1 with screws. The drive unit 2, i.e., the fixed end (stator) of the motor, is snapped into the control unit 2, and the output shaft (i.e., the rotor) of the motor is fixedly connected to the heat sink 31. The heat sink 31 is divided into multiple sets of external and internal heat sinks, which are evenly distributed. The heat generated by the light source 33 is dissipated through the external and internal heat sinks. The heat dissipation efficiency of the two sets of heat sinks is strong, effectively reducing the internal temperature of the lamp and extending its service life. The PCB board 32 is fixed to the heat sink 31 with screws. The multiple LED beads on the PCB board are formed by mechanical surface mounting. The first lens 34 is fixed to the PCB board with screws and is used to distribute the light emitted by the LED beads. The material of the first lens is plastic or silicone. Then, it is fixed to the circuit board by a black light shielding bracket 35 to block some stray light. The light coming out of the first lens is further corrected by an optical lens 36, which serves to converge and eliminate purple edges. The light-emitting surface of the second lens 36 is arc-shaped and set as a smooth curved surface. It is fastened to the lens bracket 37 by a snap-fit, and the lens bracket 37 is fixed to the heat sink 31 by screws.

[0038] The light source has three rows of LED beads, totaling 12 beads, which produce the following effects: Figure 2 The system features 12 independent lighting zones, each capable of being individually activated and deactivated based on external conditions. Upon detecting a vehicle traveling in the same direction, the high beams immediately dim the beam in the area containing that vehicle, and the dimmed area expands as the distance decreases, ensuring no glare to oncoming vehicles. Similarly, when an oncoming vehicle is detected, the high beams respond immediately, and the LEDs re-illuminate after the oncoming traffic has passed, improving road illumination and providing intelligent anti-glare functionality. Four matrix manager chips are used to adjust the brightness of the 12 LEDs, with each matrix manager controlling three LEDs individually. The matrix manager chips are located on control unit 4, controlling the high, medium, and low beam angles. Control unit 4 integrates an MCU and circuit boards with constant voltage control, constant current control, and illuminated area control, as well as communication capabilities. The ADB (Adaptive Diffraction) driver implementation in control unit 4 is existing technology, and its principles will not be detailed here.

[0039] In this embodiment, when the two-wheeled vehicle turns, the high beam headlights fixed in front of the vehicle also tilt, resulting in a tilted high beam pattern, as shown in Figure 3. Previously, on a flat road, oncoming vehicles or pedestrians were perpendicular to the road surface, occupying one or two vertical or horizontal sections in the high beam pattern. However, when turning, oncoming vehicles or pedestrians occupy three or four sections across the high beam pattern, inevitably requiring more LEDs to be extinguished, potentially affecting normal high beam illumination. Alternatively, the ADB control unit's detection algorithm calculates the area occupied by oncoming vehicles or pedestrians in the high beam pattern, controlling the corresponding LEDs to extinguish only when a certain threshold is exceeded. However, when turning, oncoming vehicles or pedestrians occupy three or four sections across the high beam pattern, and the extra one or two sections do not actually reach the threshold for extinguishing the LEDs, but this portion of the beam pattern often causes glare for oncoming vehicles or pedestrians. This embodiment features a self-balancing motor. When the high beam fixed in front of the two-wheeled vehicle tilts, the motor drives the lighting unit to rotate in the opposite direction, ensuring that the high beam pattern is always parallel to the road surface, thus avoiding the problems of existing ADB (Adaptive Dashboard) systems.

[0040] In this embodiment, as Figure 6 As shown, one of the LED beads emits light at a 180° angle. About 30° of the light is refracted out by the corresponding convex fovea, while the other light is reflected back by the other convex fovea, i.e., the first lens, because the incident angle is not small enough. Therefore, when one of the LED beads is turned off, the other LED beads will not be refracted out from the convex fovea corresponding to the turned-off LED bead, that is, there will be no light crosstalk.

[0041] In this embodiment, as Figure 7 As shown, the length and width of the convex hull 341 of the first lens 34 are greater than the length and width of the corresponding LED bead, with a fluctuation range of +1mm, and the minimum distance from the convex hull to the LED bead is 0.1mm~0.5mm.

[0042] like Figure 8 and 9 As shown, the convex hull 341 can be set on the outside of the first lens 34. The outside is the light-emitting surface. One LED bead corresponds to one convex hull. Although the light from other LED beads enters the light-incident surface of the first lens, it will also be reflected back by the light-emitting surface due to insufficient incident angle.

[0043] like Figure 10 As shown, LED beads can also be arranged in two rows, depending on the actual application.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-balancing adaptive high beam, comprising a support base (1), a driving unit (2) and an illumination unit (3) for generating an illumination light distribution, one end of the driving unit (2) being fastened on the support base (1), the illumination unit (3) comprising in sequence, away from the support base (1), a heat sink (31), a PCB board (32), a light source (33), a first lens (34), a light-shielding support (35), a second lens (36) and a lens support (37), characterized in that: The light source (33) has multiple LED lamp beads, and has convex hulls (341) corresponding to the multiple LED lamp beads on the inner surface or the outer surface of the first lens (34); The output shaft of the driving unit (2) is in transmission connection with the heat sink (31), and the center of rotation of the output shaft of the driving unit (2) coincides with the central optical axis X of the second lens (36), so as to pivot the illumination light distribution; The self-balanced adaptive high beam further comprises a gyroscope and a control unit (4), the gyroscope is arranged on the control unit (4) and is used for detecting the inclination angle of the self-balanced adaptive high beam and feeding back the inclination angle to the control unit (4), and the control unit is used for receiving the inclination angle fed back by the gyroscope and controlling the driving unit (2) to rotate by the same angle in the direction opposite to the inclination angle.

2. The self-balancing adaptive high beam according to claim 1, characterized in that: The LED lamp beads are uniformly distributed on the PCB board (32) and at least have two rows of LED lamp beads.

3. The self-balancing adaptive high beam according to claim 2, characterized in that, The size of the convex hull (341) is greater than the size of the LED lamp bead, and the convex hulls (341) have a spacing therebetween.

4. The self-balancing adaptive high beam according to claim 3, characterized in that: Part of the light emitted by the LED lamp bead is refracted out by the corresponding convex hull, and part is reflected back by the area other than the corresponding convex hull.

5. The self-balancing adaptive high beam according to claim 1, wherein, The first lens (34) is made of silica gel or plastic.

6. The self-balancing adaptive high beam of claim 1, wherein: The driving unit (2) is a motor, specifically, the motor includes a direct current motor, an alternating current motor, a stepping motor, a servo motor and a brushless motor.

7. The self-balancing adaptive high beam according to claim 1, wherein: The self-balanced adaptive high beam further comprises a bottom shell and a lampshade, the lampshade is in fastening connection with the bottom shell and defines a containing cavity together with the bottom shell, and the containing cavity is used for containing the support base (1), the driving unit (2), the illumination unit (3) and the control unit (4).

8. A vehicle characterized by: The self-balanced adaptive high beam is fastened and installed on the vehicle body. The self-balanced adaptive high beam is fastened and installed on the vehicle body.

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