Adjustable vehicle lamp angle detection mechanism

Abstract

The utility model discloses an adjustable vehicle lamp angle detection mechanism which comprises a base. The projection assembly is rotatably mounted on the base; a transmission assembly; the driving mechanism is arranged on one side of the base, and the driving mechanism is in transmission connection with the projection assembly through a transmission assembly; the control panel, the driving mechanism and the transmission assembly are arranged on the same side of the base, and the control panel is located on the side, away from the base, of the transmission assembly; the magnetic part is arranged at the end, close to the transmission assembly, of the projection assembly and synchronously rotates along with the projection assembly, and a component for detecting magnetic field changes is arranged at the position, corresponding to the magnetic part, of the control panel. According to the automobile lamp, the transmission assembly, the driving mechanism, the control panel and the magnetic part are arranged on the same side of the base, compared with the prior art, the parts are integrated on one side through reasonable layout, occupation of the overall space of the automobile lamp can be reduced to a large extent, and the overall size of the automobile lamp can be further reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to an adjustable vehicle lighting angle detection mechanism. Background Technology

[0002] With the rapid development of automotive front lighting technology, many high-tech products such as ADB, AFS, and MDF have emerged. Among them, MDF, as an adaptive high beam that achieves beam pattern switching through a mechanical structure, has attracted the attention of many OEMs.

[0003] In the prior art, when the projection component is driven by a mechanical structure to achieve light shape switching, the angle detection mechanism and the mechanical transmission structure are located on both sides of the base. This arrangement occupies a large space, making the overall size of the headlight large. In this regard, this application proposes an adjustable headlight angle detection mechanism to solve this problem. Utility Model Content

[0004] Based on this, in order to solve the problems existing in the prior art, this application provides an adjustable vehicle headlight angle detection mechanism, including a base;

[0005] The projection assembly is rotatably mounted on the base.

[0006] Transmission components;

[0007] The drive mechanism is located on one side of the base and is connected to the projection assembly via a transmission component.

[0008] The control board, the drive mechanism, and the transmission components are located on the same side of the base, and the control board is located on the side of the transmission components away from the base.

[0009] The magnetic component is located at one end of the projection assembly near the transmission assembly and rotates synchronously with the projection assembly. The control board has a component for detecting changes in the magnetic field at the position corresponding to the magnetic component.

[0010] Furthermore, the projection assembly includes a mounting bracket, a lens, and a rotating shaft. The lens is disposed on one side of the mounting bracket, and the mounting bracket is rotatably connected to the base via the rotating shaft. The end of the rotating shaft near the drive mechanism is connected to the transmission assembly.

[0011] Furthermore, a first bearing is fitted at the connection between the rotating shaft and the base, and the outer wall of the first bearing is fixedly connected to the base.

[0012] Furthermore, the transmission assembly includes a transmission rod, a first transmission wheel, a second transmission wheel, and a third transmission wheel. The two ends of the transmission rod are rotatably mounted on the base. The first and second transmission wheels are fixedly sleeved on the outer wall of the transmission rod at intervals. The third transmission wheel is fixedly sleeved on the end of the rotating shaft near the transmission rod. The first transmission wheel is connected to the output end of the drive mechanism, and the second and third transmission wheels are connected.

[0013] Furthermore, a second bearing is fitted at the connection between the two ends of the transmission rod and the base, and the outer wall of the second bearing is fixedly connected to the base.

[0014] Furthermore, the first, second, and third transmission wheels can be friction wheels, gears, or worm gears.

[0015] Furthermore, the drive mechanism is connected to the transmission rod, the first transmission wheel, the second transmission wheel, and the third transmission wheel via a reduction transmission with a transmission ratio of 120:1.

[0016] Furthermore, the magnetic component is mounted on the side of the third transmission wheel away from the mounting bracket via a mounting component. There is a gap between the magnetic component and the control board, and a Hall element is provided on the control board at the position corresponding to the magnetic component.

[0017] Furthermore, the components are Hall effect devices.

[0018] Beneficial effects: By placing the transmission components, drive mechanism, control board and magnetic components on the same side of the base, this application integrates the above components on one side through a reasonable layout compared to the prior art, which can greatly reduce the space occupied by the vehicle headlight and further reduce the overall size of the vehicle headlight. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the adjustable vehicle headlight angle detection mechanism of this utility model;

[0021] Figure 2 This is a schematic diagram of the transmission structure of the adjustable vehicle headlight angle detection mechanism of this utility model;

[0022] Figure 3 This is a side view of the adjustable headlight angle detection mechanism of this utility model.

[0023] Figure 4This is a schematic diagram of the lens assembly structure of the adjustable vehicle headlight angle detection mechanism of this utility model;

[0024] In the diagram: 1. Base; 2. Projection assembly; 21. Mounting bracket; 22. Lens; 23. Rotating shaft; 231. First bearing; 3. Drive mechanism; 4. Transmission rod; 41. Second bearing; 42. First transmission wheel; 43. Second transmission wheel; 5. Third transmission wheel; 6. Control board; 7. Magnetic component; 71. Mounting component.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] like Figure 1-4 As shown, this application embodiment provides an adjustable vehicle headlight angle detection mechanism, including a base 1;

[0030] Projection component 2 is rotatably mounted on base 1;

[0031] Transmission components;

[0032] Drive mechanism 3 is located on one side of base 1 and is connected to projection assembly 2 via transmission assembly.

[0033] The control board 6 is located on the same side of the base 1 as the drive mechanism 3 and the transmission assembly, and the control board 6 is located on the side of the transmission assembly away from the base 1.

[0034] Magnetic component 7 is located at one end of the projection assembly 2 near the transmission assembly and rotates synchronously with the projection assembly 2. The control board 6 is equipped with a component for detecting changes in the magnetic field at the position corresponding to the magnetic component 7.

[0035] In this embodiment, the projection component 2 is used to project light according to a specific light path, and the drive mechanism 3 is used to drive the projection component 2 to change the projection angle. The drive mechanism 3 is detachably installed on the base 1, and the drive mechanism 3 and the transmission component are both set on the same side of the base 1, which can effectively reduce the space occupied. Specifically, when working, the drive mechanism 3 is started, and the drive mechanism 3 drives the transmission component to drive the projection component 2, so that the projection component 2 rotates relative to the base 1, thereby achieving the purpose of changing the projection angle.

[0036] The drive mechanism 3 and transmission components drive the projection component 2 to rotate, so that the projection angle of the projection component 2 can be adjusted. At this time, the direction of the light illumination will change according to the angle of the projection component 2, thereby increasing the illumination range of the vehicle lights.

[0037] The control board 6 is a PCBA board, and an electromagnetic detection chip is provided inside the control board 6. The magnetic component 7 includes, but is not limited to, a magnet. At least one magnetic component 7 is provided. In this embodiment, there is a gap between the magnetic component 7 and the control board 6. The component is a Hall effect device.

[0038] When the projection component 2 rotates relative to the base 1, the projection component 2 drives the magnetic component 7 to rotate synchronously. At this time, a Hall current is generated between the magnetic component 7 and the Hall element on the control board 6. The Hall element on the control board 6 will detect the Hall current. Different magnetic field strengths can correspond to different positions of the projection component 2. The Hall element determines whether the projection component 2 has rotated to the set angle position based on the received magnetic field signal, which corresponds to different light patterns.

[0039] With the control board 6 and magnetic component 7 in place, when the projection component 2 rotates, a Hall current is generated under the action of the magnetic component 7. The Hall element detects the generated Hall current and judges the rotation angle of the projection component 2, so that the projection component can be quickly and accurately adjusted to the set angle position.

[0040] This application arranges the transmission assembly, drive mechanism 3, control board 6 and magnetic component 7 on the same side of the base 1. Compared with the prior art, this arrangement integrates the above components on one side through a reasonable layout, which can greatly reduce the space occupied by the vehicle headlight and further reduce the overall size of the vehicle headlight.

[0041] In one embodiment, the projection assembly 2 includes a mounting frame 21, a lens 22 and a rotating shaft 23. The lens 22 is disposed on one side of the mounting frame 21. The mounting frame 21 is rotatably connected to the base 1 via the rotating shaft 23. One end of the rotating shaft 23 is connected to the transmission assembly.

[0042] In this embodiment, the lens 22 is used to project light, the mounting bracket 21 is used to support and install the lens 22, and the two ends of the rotating shaft 23 are rotatably inserted into the top surface of the base 1; the magnetic components 7 are arranged in a ring-shaped interval around the rotating shaft 23 and are fixedly connected to the rotating shaft 23; one end of the Hall element is sleeved on the periphery of the rotating shaft 23, and the other end is fixedly connected to the control board 6.

[0043] When in operation, the drive mechanism 3 is started, and the drive mechanism 3 drives the transmission component to drive the rotating shaft 23, causing the rotating shaft 23 to rotate around the axis of the rotating shaft 23. The rotation of the axis causes the mounting bracket 21 to rotate synchronously, thereby causing the lens 22 to rotate synchronously, so that the lens 22 rotates relative to the base 1, thereby achieving the effect of changing the projection angle of the lens 22.

[0044] When the rotating shaft 23 rotates, it drives the magnetic component 7 to rotate synchronously. At this time, a Hall current is generated between the magnetic component 7 and the Hall element on the control board 6. The Hall element on the control board 6 will detect the Hall current to determine the specific position of the rotating shaft 23, so that the lens 22 can be quickly and accurately adjusted to the set angle position.

[0045] In one embodiment, a first bearing 231 is sleeved at the connection between the rotating shaft 23 and the base 1, and the outer wall of the first bearing 231 is fixedly connected to the base 1.

[0046] In this embodiment, by providing a first bearing 231 at the connection between the rotating shaft 23 and the base 1, the rotation of the rotating shaft 23 can be made smoother, the friction between the rotating shaft 23 and the base 1 can be reduced, and the noise when the rotating shaft 23 rotates can also be reduced.

[0047] In one embodiment, the transmission assembly includes a transmission rod 4, a first transmission wheel 42, a second transmission wheel 43, and a third transmission wheel 5. The two ends of the transmission rod 4 are rotatably mounted on the base 1. The first transmission wheel 42 and the second transmission wheel 43 are fixedly sleeved on the outer wall of the transmission rod 4 at intervals. The third transmission wheel 5 is fixedly sleeved on one end of the rotating shaft 23 near the transmission rod 4. The first transmission wheel 42 is connected to the output end of the drive mechanism 3, and the second transmission wheel 43 and the third transmission wheel 5 are connected.

[0048] In this embodiment, the first transmission wheel 42, the second transmission wheel 43, and the third transmission wheel 5 are all worm gears. In other embodiments, the first transmission wheel 42, the second transmission wheel 43, and the third transmission wheel 5 can be friction wheels or gears. Specifically, the first transmission wheel 42 meshes with the output end of the drive mechanism 3, the second transmission wheel 43 and the third transmission wheel 5 mesh with each other, and the axis of the transmission rod 4 is perpendicular to the axis of the rotating shaft 23.

[0049] The drive mechanism 3, transmission rod 4, first transmission wheel 42, second transmission wheel 43 and third transmission wheel 5 form a reduction transmission group; the transmission reduction ratio is 120:1, the drive mechanism 3 can output a large speed to realize the rapid rotation of the lens 22, and the large speed can produce less noise; the operation of the drive mechanism 3 facilitates the rapid and stable switching of the lens 22, as well as the precise control of the position of the lens 22 after rotation.

[0050] During operation, the output end of the drive mechanism 3 drives the first transmission wheel 42 to rotate. The rotation of the first transmission wheel 42 drives the transmission rod 4 to rotate synchronously. At the same time, it also drives the second transmission wheel 43 to rotate synchronously. The rotation of the second transmission wheel 43 drives the third transmission wheel 5, which meshes with it, to rotate. The rotation of the third transmission wheel 5 drives the rotating shaft 23 to rotate around the axis of the rotating shaft 23. The rotation of the axis drives the mounting bracket 21 to rotate synchronously, thereby driving the lens 22 to rotate synchronously. This causes the lens 22 to rotate relative to the base 1, thereby changing the projection angle of the lens 22.

[0051] Among them, the first transmission wheel 42, the second transmission wheel 43 and the third transmission wheel 5 are all worm gears, which can make the projection angle control of the lens 22 more precise;

[0052] The magnetic component 7 is mounted on the side of the third drive wheel 5 away from the mounting bracket 21 via the mounting component 71. When the third drive wheel 5 rotates, it drives the magnetic component 7 to rotate synchronously.

[0053] In one embodiment, a second bearing 41 is sleeved at the connection between the two ends of the transmission rod 4 and the base 1, and the outer wall of the second bearing 41 is fixedly connected to the base 1.

[0054] In this embodiment, by providing a second bearing 41 at the connection between the transmission rod 4 and the base 1, the rotation of the transmission rod 4 can be made smoother, reducing the friction between the transmission rod 4 and the base 1, and also reducing the noise when the transmission rod 4 rotates.

[0055] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An adjustable vehicle headlight angle detection mechanism, characterized in that, include: Base; A projection assembly, which is rotatably mounted on the base; Transmission components; A drive mechanism is disposed on one side of the base, and the drive mechanism is connected to the projection assembly via the transmission assembly. A control board, which is disposed on the same side of the base as the drive mechanism and the transmission assembly, and the control board is located on the side of the transmission assembly away from the base; A magnetic component is disposed at one end of the projection assembly near the transmission assembly and rotates synchronously with the projection assembly. The control board is provided with a component for detecting changes in the magnetic field corresponding to the position of the magnetic component.

2. The adjustable headlight angle detection mechanism according to claim 1, characterized in that, The projection assembly includes a mounting frame, a lens, and a rotating shaft. The lens is disposed on one side of the mounting frame. The mounting frame is rotatably connected to the base via the rotating shaft. The end of the rotating shaft near the drive mechanism is connected to the transmission assembly.

3. The adjustable headlight angle detection mechanism according to claim 2, characterized in that, A first bearing is fitted at the connection between the rotating shaft and the base, and the outer wall of the first bearing is fixedly connected to the base.

4. The adjustable headlight angle detection mechanism according to claim 2, characterized in that, The transmission assembly includes a transmission rod, a first transmission wheel, a second transmission wheel, and a third transmission wheel. The two ends of the transmission rod are rotatably mounted to the base. The first and second transmission wheels are fixedly sleeved on the outer wall of the transmission rod at intervals. The third transmission wheel is fixedly sleeved on the end of the rotating shaft near the transmission rod. The first transmission wheel is connected to the output end of the drive mechanism, and the second and third transmission wheels are connected.

5. The adjustable headlight angle detection mechanism according to claim 4, characterized in that, The transmission rod is fitted with a second bearing at the connection between its two ends and the base, and the outer wall of the second bearing is fixedly connected to the base.

6. The adjustable headlight angle detection mechanism according to claim 4, characterized in that, The first transmission wheel, the second transmission wheel, and the third transmission wheel can be friction wheels, gears, or worm gears.

7. The adjustable headlight angle detection mechanism according to claim 4, characterized in that, The drive mechanism is connected to the transmission rod, the first transmission wheel, the second transmission wheel, and the third transmission wheel via a speed reduction transmission with a transmission ratio of 120:

1.

8. The adjustable headlight angle detection mechanism according to claim 4, characterized in that, The magnetic component is mounted on the side of the third transmission wheel away from the mounting frame via a mounting component, and there is a gap between the magnetic component and the control board.

9. The adjustable headlight angle detection mechanism according to claim 1, characterized in that, The component in question is a Hall effect device.

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