High-beam and low-beam switching mechanism

By combining noise reduction design with the return spring torsion spring design, the problem of slow response speed of the high/low beam switching mechanism of the headlights was solved, thus reducing noise during the switching process and improving response speed and beam stability.

CN223904959UActive Publication Date: 2026-02-13朱玉清
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Patent Information

Application Number
CN202520700150.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-13
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Existing headlight high/low beam switching mechanisms suffer from slow response speed and noise during switching, especially when electromagnetic induction drive causes noticeable collision and friction noise from mechanical parts.

Method used

Precisely designed noise-absorbing washers and O-rings reduce the impact between the moving and stationary iron cores. Combined with the synergistic design of the return spring and torsion spring, it ensures that the light-blocking plate quickly returns to its initial position. The precise matching of the positioning pin and the limit plate improves the system's quietness and response speed.

Benefits of technology

It significantly reduces noise during the switching process, improves the smoothness and response speed of headlight switching, ensures the accuracy and stability of beam adjustment, and enhances driving comfort.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223904959U_ABST
Patent Text Reader

Abstract

The utility model discloses a high beam and low beam switching mechanism, which belongs to the technical field of car lamps and comprises a bottom plate and a wire, a shell is mounted on the upper side of the bottom plate, an enameled wire coil is arranged on the inner side of the shell, a cover plate is arranged on the right side of the enameled wire coil, and the enameled wire coil is electrically connected with the wire. According to the utility model, through the accurately designed silencing gasket and the silencing O-shaped ring, the impact between the movable iron core and the static iron core is effectively reduced, and the noise generated in the high beam and low beam switching process is obviously reduced. By means of the design, the stability during automobile lamp switching is enhanced, the mute effect is improved, and the comfort of an automobile in the using process is improved. The positioning pin and the limiting plate are accurately matched, so that the relative positions of all moving parts are guaranteed, deviation caused by mechanical errors is avoided, and therefore accurate positioning of the light barrier and stability of light beams are guaranteed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle lamps, in particular to a high-low light switching mechanism. BACKGROUND

[0002] With the development of vehicle lamp technology, the original single light source gradually develops into a matrix light source, and the single light source switch requires more and more miniaturization. With the development of vehicle lamp technology, the original single light source gradually develops into a matrix light source, and the single light source switch requires more and more miniaturization. Therefore, the high-low light integration of the headlamp is proposed, that is, the same light source is used for high and low light, and the function requirements of high and low light are switched by adjusting the internal structure during driving.

[0003] The high-low light switching mechanism of the prior art mostly adopts mechanical or electromagnetic induction driving, but they have the problems of slow switching response speed and large noise during switching. Although the electromagnetic induction driving has fast response speed, the collision and friction between mechanical parts during switching still produce noise. In addition, due to the complex design of the vehicle lamp system, the switching mechanism is required to stably operate under different environments and use conditions, and the prior art still has room for improvement in this regard. SUMMARY

[0004] Therefore, the present application provides a high-low light switching mechanism to solve the problems of the prior art that the high-low light switching mechanism of the vehicle lamp mostly adopts mechanical or electromagnetic induction driving, but they have the problems of slow switching response speed and large noise during switching. Although the electromagnetic induction driving has fast response speed, the collision and friction between mechanical parts during switching still produce noise.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme:

[0006] A high-low light switching mechanism, comprising a bottom plate, an electric wire, the upper side of the bottom plate is provided with a shell, the inner side of the shell is provided with an enameled wire coil, the right side of the enameled wire coil is provided with a cover plate, and the enameled wire coil and the electric wire are electrically connected.

[0007] Optionally, the inner side of the enameled wire coil is provided with a static iron core, the electric wire is fixedly connected below the static iron core, the right side of the static iron core is provided with a return spring, the upper end of the return spring is provided with a moving iron core, and the moving iron core is installed in the enameled wire coil.

[0008] Optionally, the right end of the moving iron core is provided with an open cylindrical pin, the inner side of the open cylindrical pin is provided with a swing rod, and the inner side of the swing rod is provided with a positioning pin.

[0009] Optionally, the outer side of the static iron core is provided with a sound-absorbing O-ring, and the inner side of the limiting plate is provided with a sound-absorbing gasket.

[0010] Optionally, a rotating shaft is rotatably connected in the bottom plate, a light shield plate is arranged at the left end of the swing lever, the light shield plate is rotatably connected with the bottom plate through the rotating shaft, and a torsional spring is sleeved outside the rotating shaft.

[0011] Optionally, the shell and the cover plate are fixed on the bottom plate by screws to form a sealed structure.

[0012] Optionally, the limiting plate is used for limiting the movement range of the moving iron core.

[0013] Compared with the prior art, the application has at least the following beneficial effects:

[0014] 1. In the utility model, the impact between the moving iron core and the static iron core is effectively reduced by the precisely designed sound-absorbing gasket and sound-absorbing O-shaped ring, and the noise generated in the high-beam and low-beam switching process is significantly reduced. This design not only enhances the stability of the vehicle lamp switching, but also improves the mute effect and the comfort in the use of the vehicle. The precise cooperation of the positioning pin and the limiting plate ensures the relative position between the various moving parts and avoids the deviation caused by mechanical errors, thereby ensuring the accurate positioning of the light shield plate and the stability of the light beam.

[0015] 2. In the utility model, the coordinated design of the return spring and the torsional spring effectively ensures that the light shield plate can quickly return to the initial position, thereby accelerating the response speed of the high-beam and low-beam switching system. This design not only shortens the delay time in the switching process, but also greatly improves the response speed and stability of the vehicle lamp switching, ensuring that the light beam adjustment during driving is more rapid and accurate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes, structures shown in the drawings should not be regarded as limiting conditions in the implementation of the present application; for example, based on the technical concepts disclosed in the present application and the exemplary drawings, those skilled in the art can easily make routine adjustments or further optimization of the increase / decrease / attribute division of certain units (components), specific shapes, positional relationships, connection modes, size ratio relationships, etc.

[0017] Figure 1 A three-dimensional structure schematic view of a high-beam and low-beam switching mechanism is provided for the first embodiment of the present application;

[0018] Figure 2 A bottom plate cross-sectional structure schematic view of a high-beam and low-beam switching mechanism is provided for the first embodiment of the present application;

[0019] Figure 3 A high-beam and low-beam switching mechanism unpowered state schematic view is provided for the second embodiment of the present application;

[0020] Figure 4 A far and near light switching mechanism provided for the embodiment one of the application is shown in the power-on state.

[0021] Marked for explanation:

[0022] 1, the bottom plate; 2, the positioning pin; 3, the sound-absorbing ring; 4, the open cylindrical pin; 5, the moving core; 6, the limiting plate; 7, the cover plate; 8, the screw; 9, the shell; 10, the enameled wire coil; 11, the reset spring; 12, the static core; 13, the sound-absorbing O-ring; 14, the swing bar; 15, the rotating shaft; 16, the light shield plate; 17, the torsional spring; 18, the electric wire. Specific implementation

[0023] The application is further described in detail through specific embodiments in combination with the drawings.

[0024] Please refer to Figures 1-4 , the utility model provides a technical scheme: a far and near light switching mechanism, including bottom plate 1, electric wire 18 and limiting plate 6, bottom plate 1 upside is equipped with shell 9, shell 9 inner side is provided with enameled wire coil 10, enameled wire coil 10 right side is provided with cover plate 7, and enameled wire coil 10 is electrically connected between electric wire 18.

[0025] Specifically, as Figures 2-3 Indicated, enameled wire coil 10 inner side is provided with static core 12, electric wire 18 is fixedly connected at static core 12 below, static core 12 right side is equipped with reset spring 11, and the cooperation design of reset spring 11 and moving core 5 ensures that moving core 5 can quickly restore to the original position in the switching process, prevents the deviation caused by external factors, and this cooperation makes the switching action more rapid and stable, and helps to reduce the error caused by inertia or vibration in the system, thereby improving the response speed and accuracy of the far and near light switching process;

[0026] And reset spring 11 upper end is equipped with moving core 5, moving core 5 is installed in enameled wire coil 10, moving core 5 right end is equipped with open cylindrical pin 4, open cylindrical pin 4 inner side is provided with swing bar 14, and swing bar 14 inner side is provided with positioning pin 2, and the accurate cooperation of swing bar 14 and positioning pin 2 ensures the stability and controllability of swing bar 14 when acting, and the existence of positioning pin 2 makes swing bar 14 can keep fixed track in the working process, avoids the inaccuracy of light shield plate 16 position caused by swing bar 14 deviation, thereby guaranteeing the accuracy and stability of light beam adjustment, and improving the performance of car light switching;

[0027] Static core 12 is externally equipped with sound-absorbing O-ring 13, and the cooperation of sound-absorbing O-ring 13 and static core 12 effectively reduces the friction noise between moving core 5 and static core 12, which helps to reduce the mechanical noise generated in the working process of the system, improves the mute effect, especially in high-frequency switching, significantly improves the comfort during use.

[0028] The sound-absorbing gasket 3 is installed in the limiting plate 6, the rotating shaft 15 is rotatably connected to the bottom plate 1, the light barrier 16 is arranged at the left side of the front end of the swing rod 14, the light barrier 16 is rotatably connected to the bottom plate 1 through the rotating shaft 15, and the cooperation of the light barrier 16 and the rotating shaft 15 enables the light barrier 16 to rotate stably during switching, thereby ensuring stable adjustment of the light beam. Through rotation of the rotating shaft 15, the light barrier 16 can be freely adjusted between different angles, and the torsional spring 17 sleeved outside the rotating shaft 15 can automatically restore the light barrier 16 to the initial position after switching, thereby further ensuring the system response speed and switching stability.

[0029] The torsional spring 17 is sleeved outside the rotating shaft 15, the shell 9 and the cover plate 7 are fixed on the bottom plate 1 through the screws 8 to form a sealed structure, and the limiting plate 6 is used to limit the movement range of the moving iron core 5.

[0030] During operation, the precisely designed sound-absorbing gasket 3 and sound-absorbing O-ring 13 effectively reduce the impact between the moving iron core 5 and the static iron core 12, thereby reducing the noise generated during the high-beam and low-beam switching process. This design relieves the violent movement of the moving iron core 5 during switching, thereby improving the quietness of the system. Meanwhile, the precise cooperation of the positioning pin 2 and the limiting plate 6 ensures the relative positions between the various moving parts, thereby avoiding deviation caused by mechanical errors, and ensuring accurate positioning of the light barrier 16 during switching and stability of the light beam. The cooperative design of the return spring 11 and the torsional spring 17 enables the light barrier 16 to quickly return to the initial position, thereby ensuring efficient response of the system.

[0031] The technical features of the above embodiments can be combined in any manner (as long as the combination of the technical features does not contradict). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. The embodiments not explicitly described are also considered to be within the scope of the present disclosure.

Claims

1. A high / low beam switching mechanism comprising a base plate (1), an electric wire (18) and a stop plate (6), characterized in that, The bottom plate (1) is provided with a shell (9) on the upper side, the shell (9) is provided with an enameled wire coil (10) on the inner side, the enameled wire coil (10) is provided with a cover plate (7) on the right side, and the enameled wire coil (10) is electrically connected with the electric wire (18).

2. The high beam and low beam switching mechanism according to claim 1, characterized by The enameled wire coil (10) is provided with a static core (12) on the inner side, the electric wire (18) is fixedly connected below the static core (12), the static core (12) is provided with a reset spring (11) on the right side, and the reset spring (11) is provided with a moving core (5) on the upper end, and the moving core (5) is installed in the enameled wire coil (10).

3. The high beam and low beam switching mechanism according to claim 2, characterized in that The moving core (5) is provided with an open cylindrical pin (4) on the right end, the open cylindrical pin (4) is provided with a swing rod (14) on the inner side, and the swing rod (14) is provided with a positioning pin (2) on the inner side.

4. The high beam and low beam switching mechanism according to claim 2, characterized by The static core (12) is provided with a sound-absorbing O-shaped ring (13) on the outer side, the limiting plate (6) is installed outside the shell (9), and the limiting plate (6) is provided with a sound-absorbing gasket (3) on the inner side.

5. The high beam and low beam switching mechanism according to claim 3, wherein The bottom plate (1) is rotatably connected with a rotating shaft (15), the swing rod (14) is provided with a light barrier (16) on the left side of the front end, the light barrier (16) is rotatably connected with the bottom plate (1) through the rotating shaft (15), and the rotating shaft (15) is provided with a torsional spring (17) on the outer side.

6. The high beam and low beam switching mechanism according to claim 1, characterized by The shell (9) and the limiting plate (6) are provided with a screw (8) penetratingly connected on the inner side, and are fixed on the bottom plate (1) through the screw (8), so as to form a sealed structure.

7. The high beam and low beam switching mechanism according to claim 4, wherein The limiting plate (6) is used for limiting the moving range of the moving core (5).