Car lamp eddy current type angle detection mechanism

Abstract

The utility model discloses a car lamp eddy current type 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 an eddy current blade wheel 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] The utility model relates to car lamp technical field, especially a kind of car lamp electric eddy current type angle detection mechanism. BACKGROUND

[0002] With the rapid development of automobile front lamp technology, many high-tech products such as ADB, AFS, MDF, etc. have emerged. Among them, MDF, as an adaptive high beam realized by mechanical structure, has attracted the attention of many OEMs.

[0003] In the prior art, when the light shape switching is realized by driving the projection assembly through the mechanical structure, the angle detection mechanism and the mechanical transmission structure of the prior art are located on both sides of the base. This arrangement occupies a large space, making the size of the entire car lamp larger. To solve this problem, the present application provides a car lamp electric eddy current type angle detection mechanism. SUMMARY

[0004] Therefore, in order to solve the problems existing in the prior art, the present application provides a car lamp electric eddy current type angle detection mechanism, which comprises a base;

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

[0006] The transmission assembly;

[0007] The driving mechanism is arranged on one side of the base, and the driving mechanism is drivingly connected with the projection assembly through the transmission assembly.

[0008] The control panel is arranged on the same side of the base as the driving mechanism and the transmission assembly, and the control panel is located on the side of the transmission assembly away from the base.

[0009] The magnetic member is arranged on one end of the projection assembly close to the transmission assembly, and rotates synchronously with the projection assembly. The control panel is provided with an electric eddy current vane wheel corresponding to the position of the magnetic member.

[0010] Further, the projection assembly comprises a mounting bracket, a lens and a shaft, the lens is arranged on one side of the mounting bracket, the mounting bracket is rotatably connected with the base through the shaft, and one end of the shaft close to the driving mechanism is drivingly connected with the transmission assembly.

[0011] Further, the shaft is sleeved with a first bearing at the connection with the base, and the outer wall of the first bearing is fixedly connected with the base.

[0012] Further, the transmission assembly comprises a transmission rod, a first transmission wheel, a second transmission wheel and a third transmission wheel, both ends of the transmission rod are rotatably installed on the base, the first transmission wheel and the second transmission wheel are fixedly sleeved on the outer wall of the transmission rod at intervals, the third transmission wheel is fixedly sleeved on one end of the rotating shaft close to the transmission rod, the first transmission wheel is in transmission connection with the output end of the driving mechanism, and the second transmission wheel and the third transmission wheel are in transmission connection.

[0013] Further, the first transmission wheel, the second transmission wheel and the third transmission wheel can be friction wheels, gear wheels or worm wheels.

[0014] Further, the driving mechanism is in speed reduction transmission with the transmission rod, the first transmission wheel, the second transmission wheel and the third transmission wheel, and the transmission ratio is 120:1.

[0015] Further, the magnetic member is installed on the side, away from the mounting frame, of the third transmission wheel through the mounting member, and there is a gap between the magnetic member and the electric eddy current blade wheel.

[0016] Further, the magnetic member is an electromagnetic coil.

[0017] Beneficial effects: the transmission assembly, the driving mechanism, the control board and the magnetic member are arranged on the same side of the base, compared with the prior art, the above-mentioned components are integrated on one side through reasonable layout, the occupation of the overall space of the vehicle lamp can be greatly reduced, and the overall volume of the vehicle lamp can be further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor.

[0019] Fig. 1 It is a schematic view of the transmission structure of the vehicle lamp electric eddy current type angle detection mechanism of the present application;

[0020] Fig. 2 It is a schematic view of the magnetic member structure of the vehicle lamp electric eddy current type angle detection mechanism of the present application;

[0021] Fig. 3 It is a schematic view of the overall structure of the vehicle lamp electric eddy current type angle detection mechanism of the present application;

[0022] 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. First transmission wheel; 42. Second transmission wheel; 5. Third transmission wheel; 51. Mounting block; 511. Magnetic component; 6. Control board; 7. Eddy current impeller blade.

[0023] 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

[0024] 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.

[0025] 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.

[0026] 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.

[0027] like Figs. 1-3 As shown, this application embodiment provides a vehicle headlight eddy current angle detection mechanism, including a base 1;

[0028] Projection component 2 is rotatably mounted on base 1;

[0029] Transmission components;

[0030] Drive mechanism 3 is located on one side of base 1 and is connected to projection assembly 2 via transmission assembly.

[0031] The control board 6 is arranged on the same side of the base 1 as the driving mechanism 3 and the transmission assembly, and is located on the side of the transmission assembly away from the base 1;

[0032] The magnetic member 511 is arranged at one end of the projection assembly 2 close to the transmission assembly, and rotates synchronously with the projection assembly 2. The control board 6 is provided with an eddy current vane wheel 7 corresponding to the position of the magnetic member 511.

[0033] In the embodiment, the projection assembly 2 is used to project light according to a specific light path, and the driving mechanism 3 is used to drive the projection assembly 2 to change the projection angle. The driving mechanism 3 is detachably mounted on the base 1, and the driving mechanism 3 and the transmission assembly are arranged on the same side of the base 1, so that the space occupation can be effectively reduced. Specifically, during operation, the driving mechanism 3 is started, the driving mechanism 3 drives the transmission assembly to drive the projection assembly 2, so that the projection assembly 2 rotates relative to the base 1, thereby achieving the purpose of changing the projection angle.

[0034] The driving mechanism 3 and the transmission assembly are arranged to drive the projection assembly 2 to rotate, so that the projection angle of the projection assembly 2 can be adjusted. At this time, the illumination direction of the light will change according to the angle change of the projection assembly 2, thereby increasing the illumination range of the vehicle lamp.

[0035] The control board 6 is a PCBA board, and an electromagnetic detection chip is arranged in the control board 6. The magnetic member 511 includes but is not limited to an electromagnetic coil, and at least one magnetic member 511 is arranged. In the embodiment, there is a gap between the magnetic member 511 and the eddy current vane wheel 7.

[0036] When the projection assembly 2 rotates relative to the base 1, the magnetic member 511 swings synchronously driven by the projection assembly 2. At this time, the magnetic member 511 and the eddy current vane wheel 7 on the control board 6 will generate an electromagnetic field. At this time, the electromagnetic detection chip on the control board 6 will detect the electromagnetic field. Different magnetic field strengths can correspond to different positions of the projection assembly 2. The electromagnetic detection chip judges whether the projection assembly 2 rotates to the set angle position according to the received magnetic field signal, that is, corresponds to different light types.

[0037] The control board 6, the eddy current vane wheel 7 and the magnetic member 511 are arranged to generate an electromagnetic field when the projection assembly 2 rotates, under the cooperation of the magnetic member 511 and the eddy current vane wheel 7 on the control board 6. The electromagnetic detection chip in the control board 6 detects the strength of the generated electromagnetic field, thereby judging the rotation angle of the projection assembly 2, so that the projection assembly can be quickly and accurately adjusted to the set angle position.

[0038] The application sets the transmission assembly, the driving mechanism 3, the control board 6 and the magnetic piece 511 on the same side of the base 1. Compared with the prior art, the above components are integrated on one side through reasonable layout, which can greatly reduce the occupation of the overall space of the vehicle lamp and further reduce the overall volume of the vehicle lamp.

[0039] In one embodiment, the projection assembly 2 comprises a mounting frame 21, a lens 22 and a rotating shaft 23. The lens 22 is arranged on one side of the mounting frame 21. The mounting frame 21 is rotationally connected to the base 1 through the rotating shaft 23. One end of the rotating shaft 23 is drivingly connected to the transmission assembly.

[0040] In this embodiment, the lens 22 is used for projecting light. The mounting frame 21 is used for supporting and mounting the lens 22. The two ends of the rotating shaft 23 are rotationally inserted into the top surface of the base 1.

[0041] In operation, the driving mechanism 3 is started. The driving mechanism 3 drives the transmission assembly to drive the rotating shaft 23 to rotate around the axis of the rotating shaft 23. The rotation of the axis drives the mounting frame 21 to rotate synchronously, thereby driving the lens 22 to rotate synchronously. As a result, the lens 22 rotates relative to the base 1, thereby changing the projection angle of the lens 22.

[0042] When the rotating shaft 23 rotates, the rotating shaft 23 drives the magnetic piece 511 to swing synchronously. At this time, the magnetic piece 511 and the electric eddy current blade wheel 7 on the control board 6 cooperate to generate an electromagnetic field. At this time, the electromagnetic detection chip in the control board 6 detects the strength of the generated electromagnetic field, thereby determining the specific position of the rotating shaft 23. As a result, the lens 22 can be quickly and accurately adjusted to the set angle position.

[0043] In one embodiment, a first bearing 231 is arranged at the connection between the rotating shaft 23 and the base 1. The outer wall of the first bearing 231 is fixedly connected to the base 1.

[0044] In this embodiment, the first bearing 231 arranged at the connection between the rotating shaft 23 and the base 1 can make the rotation of the rotating shaft 23 more smooth, reduce the friction between the rotating shaft 23 and the base 1, and further reduce the noise during the rotation of the rotating shaft 23.

[0045] In one embodiment, the transmission assembly comprises a transmission rod 4, a first transmission wheel 41, a second transmission wheel 42 and a third transmission wheel 5. The two ends of the transmission rod 4 are rotationally mounted to the base 1. The first transmission wheel 41 and the second transmission wheel 42 are fixedly arranged on the outer wall of the transmission rod 4 in a spaced manner. The third transmission wheel 5 is fixedly arranged on one end of the rotating shaft 23 close to the transmission rod 4. The first transmission wheel 41 is drivingly connected to the output end of the driving mechanism 3. The second transmission wheel 42 is drivingly connected to the third transmission wheel 5.

[0046] In the embodiment, the first transmission wheel 41, the second transmission wheel 42 and the third transmission wheel 5 are all worm gears, in other embodiments, the first transmission wheel 41, the second transmission wheel 42 and the third transmission wheel 5 can be friction wheels or gears, and the third transmission wheel 5 can be a half gear, specifically, the first transmission wheel 41 is engaged with the output end of the driving mechanism 3, the second transmission wheel 42 and the third transmission wheel 5 are engaged with each other, and the axis of the transmission rod 4 is arranged vertically with the axis of the rotating shaft 23;

[0047] The driving mechanism 3, the transmission rod 4, the first transmission wheel 41, the second transmission wheel 42 and the third transmission wheel 5 form a speed reduction transmission group; the transmission speed reduction ratio is 120:1, the driving mechanism 3 can output a large rotating speed, the rotating speed is large, the rotating speed of the lens 22 can be quickly rotated, and the large rotating speed can generate small noise; the driving mechanism 3 is convenient for the lens 22 to quickly and stably switch, and accurately control the position of the lens 22 after rotating;

[0048] When working, the output end of the driving mechanism 3 drives the first transmission wheel 41 to rotate, the first transmission wheel 41 drives the transmission rod 4 to synchronously rotate, at the same time, the second transmission wheel 42 is also driven to synchronously rotate, the second transmission wheel 42 drives the third transmission wheel 5 engaged with the second transmission wheel 42 to rotate, the third transmission wheel 5 drives the rotating shaft 23 to rotate around the axis of the rotating shaft 23, the axis drives the mounting frame 21 to synchronously rotate, thereby driving the lens 22 to synchronously rotate, so that the lens 22 rotates relative to the base 1, thereby achieving the purpose of changing the projection angle of the lens 22;

[0049] The first transmission wheel 41, the second transmission wheel 42 and the third transmission wheel 5 are all worm gears, which can make the projection angle control of the lens 22 more accurate;

[0050] The magnetic member 511 is installed on the side of the third transmission wheel 5 away from the mounting frame 21 through the mounting member 71, and the third transmission wheel 5 drives the magnetic member 511 to synchronously swing when rotating.

[0051] In one embodiment, the second bearing 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 is fixedly connected with the base 1.

[0052] In the embodiment, the second bearing is arranged at the connection between the transmission rod 4 and the base 1, which can make the rotation of the transmission rod 4 more smooth, reduce the friction between the transmission rod 4 and the base 1, and also reduce the noise when the transmission rod 4 rotates.

[0053] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made according to the content of the present application and the drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An electric eddy current type angle detecting mechanism for a vehicle lamp, characterized by comprising: It includes: Base; Projection assembly, the projection assembly is rotatably mounted on the base; Transmission assembly; Drive mechanism, the drive mechanism is provided on one side of the base, the drive mechanism is in driving connection with the projection assembly through the transmission assembly; Control panel, the control panel is provided on the same side of the drive mechanism and the transmission assembly of the base, and the control panel is located on the side of the transmission assembly away from the base; Magnetic piece, the magnetic piece is provided on one end of the projection assembly close to the transmission assembly, and rotates synchronously with the projection assembly, and the control panel is provided with an eddy current vane wheel corresponding to the position of the magnetic piece.

2. The vehicle lamp eddy current angle detection mechanism of claim 1, wherein The projection assembly includes a mounting frame, a lens and a shaft, the lens is provided on one side of the mounting frame, the mounting frame is rotatably connected with the base through the shaft, and one end of the shaft close to the drive mechanism is in driving connection with the transmission assembly.

3. The vehicle lamp eddy current angle sensing mechanism of claim 2 wherein, The connecting part of the shaft and the base is sleeved with a first bearing, and the outer wall of the first bearing is fixedly connected with the base.

4. The vehicle lamp eddy current angle sensing mechanism of claim 2 wherein, The transmission assembly includes a transmission rod, a first transmission wheel, a second transmission wheel and a third transmission wheel, the transmission rod is rotatably installed at both ends of the base, the first transmission wheel and the second transmission wheel are fixedly sleeved on the outer wall of the transmission rod at intervals, and the third transmission wheel is fixedly sleeved on one end of the shaft close to the transmission rod, the first transmission wheel is in driving connection with the output end of the drive mechanism, and the second transmission wheel and the third transmission wheel are in driving connection.

5. The eddy current angle sensing mechanism for a vehicle lamp as set forth in claim 4, wherein The first transmission wheel, the second transmission wheel and the third transmission wheel can be friction wheels, gears or worm gears.

6. The eddy current angle sensing mechanism of claim 4 wherein, The drive mechanism, the transmission rod, the first transmission wheel, the second transmission wheel and the third transmission wheel are in speed reduction transmission, and the transmission ratio is 120:

1.

7. The eddy current angle sensing mechanism of claim 4 wherein, The magnetic piece is installed on the side of the third transmission wheel away from the mounting frame through a mounting piece, and there is a gap between the magnetic piece and the eddy current vane wheel.

8. The eddy current angle sensing mechanism of claim 7, wherein: The magnetic piece is an electromagnetic coil.

Images