A car headlight knob

Abstract

The utility model relates to an automobile headlamp knob, it includes support, knob, sleeve, pivot and electric signal generation subassembly, it adopts the composite design of mechanical positioning and non -contact sensing, through the rotation and axial movement of pivot in sleeve, cooperation needle and the mechanical positioning structure of locating top, realize accurate gear switching and good operation hand feeling, adopt hall sensor and so on non -contact electric signal generation subassembly to replace traditional mechanical contact simultaneously, completely solved the physical wear and tear problem, especially applicable to the high -intensity use scene such as driving school coach car. The design ensures the operation precision while significantly improving the reliability and durability of product, its modular structure not only is convenient for maintaining, but also can flexible adaptation different car type's light control system, has the comprehensive advantage such as stable structure, strong anti -interference ability, long service life.

Description

Technical Field

[0001] This utility model relates to the field of automotive component structural design technology, specifically to automotive headlight knobs. Background Technology

[0002] In German cars, headlights are typically controlled via a knob on the dashboard. In most private cars, this knob is designed to last a normal lifespan.

[0003] However, in driving school training vehicles, students need to practice operating the lights repeatedly, resulting in a much higher frequency and intensity of use for the headlight knobs compared to private cars. This high-frequency operation significantly accelerates the wear and tear on the knobs.

[0004] Therefore, in order to cope with the high-intensity usage scenarios unique to driving school vehicles, it is necessary to develop a headlight knob with a more robust structure and greater wear resistance. Utility Model Content

[0005] Based on the above description, this utility model provides a car headlight knob to solve the technical problem in the prior art where the high-frequency operation of the car headlight knob on driving school training vehicles greatly accelerates the wear rate of the knob.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A car headlight knob includes a bracket, a knob, a sleeve, a shaft, and a Hall effect sensor assembly;

[0008] The bracket includes a front panel with a mounting hole, a sleeve fixed in the mounting hole, a rotating shaft rotatably mounted in the sleeve and movable in the axial direction of the sleeve, a knob fixedly connected to one end of the rotating shaft, a pin on the rotating shaft, and multiple positioning holes on the sleeve that cooperate with the pin. When the pin cooperates with different positioning holes as the rotating shaft rotates and / or moves axially, the car headlight knob is in different positions.

[0009] The electrical signal generation component generates different lighting control signals according to the different gear levels.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0011] The automotive headlight knob provided in this application adopts a composite design of mechanical positioning and non-contact sensing. Through the rotation and axial movement of the shaft within the sleeve, combined with the mechanical positioning structure of the ejector pin and the positioning top, precise gear shifting and a good operating feel are achieved. Simultaneously, non-contact electrical signal generation components such as Hall effect sensors replace traditional mechanical contacts, completely solving the problem of physical wear, making it particularly suitable for high-intensity usage scenarios such as driving school training vehicles. This design significantly improves the reliability and durability of the product while ensuring operational accuracy. Its modular structure not only facilitates maintenance but also flexibly adapts to the lighting control systems of different vehicle models, possessing comprehensive advantages such as structural stability, strong anti-interference ability, and long service life.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the electrical signal generating component includes a first Hall sensor component; the first Hall sensor component includes a first sensing magnet and a first Hall circuit board, one end of the first sensing magnet is connected to the end of the rotating shaft, the rotating shaft is movably disposed relative to the first sensing magnet in the axial direction and fixed relative to the first sensing magnet in the circumferential direction; the other end of the first sensing magnet forms a first sensing hole, the first Hall circuit board is disposed at the end of the rotating shaft away from the knob, the first Hall circuit board is provided with a plurality of first Hall sensors, when the first sensing hole corresponds to the first Hall sensor, the first Hall circuit board generates a preset first light control electrical signal.

[0014] Furthermore, the first Hall circuit board is provided with three first Hall sensors. When the three first Hall sensors cooperate with the first sensing hole, they respectively generate an off signal, a low beam signal, and a high beam signal.

[0015] Furthermore, the bracket also includes a rear mounting bracket, the first inductive magnet is rotatably mounted on the rear mounting bracket and its rotation axis is consistent with the rotating shaft, and the first Hall circuit board is fixedly mounted on the rear mounting bracket.

[0016] Furthermore, the bracket also includes a mounting plate, and the electrical signal generating component further includes a second Hall sensor component; the second Hall sensor component includes a second sensing magnet and a second Hall circuit board, one end of the second sensing magnet has a gear structure and the other end has a second sensing hole, the second Hall circuit board is provided with a plurality of second Hall sensors, the second sensing magnet is rotatably mounted on the mounting plate, the second Hall circuit board is fixed on the mounting plate, the outer wall of the rotating shaft has an external thread that meshes with the gear structure, the rotating shaft moves along the axis to drive the second sensing magnet to swing, when the second sensing hole corresponds to the second Hall sensor, the second Hall circuit board generates a preset second light control electrical signal.

[0017] Furthermore, the second Hall circuit board is equipped with three second Hall sensors. When the three second Hall sensors cooperate with the second sensing hole, they generate headlight signals, fog light signals, and side marker light signals, respectively.

[0018] Furthermore, the sleeve is provided with 7 positioning top openings, which consist of 6 control top openings and 1 shut-off top opening. The 6 control top openings are arranged in 3 rows along the sleeve axis and in 2 columns around the sleeve. The shut-off top opening is located on the row of control top openings furthest from the knob.

[0019] Furthermore, a limiting hole is formed on the sleeve, and a limiting post is provided on the rotating shaft. The limiting post is movably disposed in the limiting hole, and a clearance notch is formed on the side of the limiting hole away from the knob. When the ejector pin corresponds to the shut-off top opening, the limiting post is located in the clearance notch.

[0020] Furthermore, it also includes a knob sleeve, which is fixedly mounted on the front panel. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of a car headlight knob provided in an embodiment of this application;

[0022] Figure 2 An embodiment of this application provides a car headlight knob relative to... Figure 1 A schematic diagram of the three-dimensional structure from another perspective;

[0023] Figure 3 This is a schematic diagram of the structure of the rotating shaft in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram showing the fit between the limiting post and the limiting hole in an embodiment of this application. Detailed Implementation

[0025] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0026] Unless otherwise defined, 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 belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0027] like Figures 1-4 As shown, this application embodiment provides an automotive headlight knob, including a bracket 10, a knob 20, a sleeve 30, a rotating shaft 40, and an electrical signal generating component.

[0028] The bracket 10 includes a front panel 11 with a mounting hole 11a. The sleeve 30 is fixed to the mounting hole 11a. The rotating shaft 40 is rotatably mounted in the sleeve 30 and is movably arranged in the axial direction of the sleeve 30. The knob 20 is fixedly connected to one end of the rotating shaft 40. The rotating shaft 40 is provided with a pin 41. The sleeve 30 has a plurality of positioning holes 30a that cooperate with the pin 41. When the pin 41 cooperates with different positioning holes 30a as the rotating shaft 40 rotates and / or moves axially, the car headlight knob is in different positions.

[0029] The electrical signal generation component generates different lighting control signals according to the different gear levels, and the electrical signal generation component generates electrical signals using a non-contact triggering method.

[0030] In the embodiments of this application, the non-contact method of generating electrical signals specifically employs Hall sensing, a non-contact sensing technology based on the Hall effect. When current passes through a semiconductor material, if a magnetic field is applied in the perpendicular direction, a potential difference (Hall voltage) will be generated across the material; this phenomenon is called the Hall effect. In this solution, a Hall sensor and a permanent magnet constitute a Hall sensing component. The permanent magnet moves with the rotation of the shaft, changing its relative position to the Hall sensor, allowing the sensor to detect different changes in magnetic field strength and output corresponding electrical signals. Compared to traditional mechanical contacts, this non-contact detection method completely avoids physical friction, offering three major advantages: 1) Completely eliminates mechanical wear, with a lifespan exceeding one million cycles, fully meeting the high-intensity use requirements of driving school training vehicles; 2) Unaffected by environmental factors such as dust and oil; 3) Fast response speed, accurately capturing rapid operations.

[0031] Specifically, the electrical signal generation component includes a first Hall sensor component 51 and a second Hall sensor component 52.

[0032] The first Hall sensor assembly 51 includes a first sensing magnet 511 and a first Hall circuit board 512. One end of the first sensing magnet 511 is connected to the end of the rotating shaft 40. The rotating shaft 40 is movably disposed relative to the first sensing magnet 511 in the axial direction and fixed relative to the first sensing magnet 511 in the circumferential direction. That is, the rotating shaft 40 can move relative to the first sensing magnet 511 in the axial direction, but when the rotating shaft 40 rotates around its own axis, it drives the first sensing magnet 511 to rotate synchronously, such as through the cooperation of a D-shaped interface and a D-shaped shaft.

[0033] The other end of the first sensing magnet 511 has a first sensing hole 511a. The first Hall circuit board 512 is disposed at the end of the rotating shaft 40 away from the knob 20. The first Hall circuit board 512 is provided with a plurality of first Hall sensors 512b. When the first sensing hole 511a corresponds to the first Hall sensor 512b, the first Hall circuit board 512 generates a preset first light control electrical signal.

[0034] In the embodiments of this application, three first Hall sensors 512b are provided on the first Hall circuit board 512. When the three first Hall sensors 512b cooperate with the first sensing hole 511a, they respectively generate a turn-off signal, a low beam signal and a high beam signal, thereby controlling the turning off of the car headlights and the switching between high and low beams.

[0035] The bracket 10 further includes a rear mounting bracket 12, the first induction magnet 511 is rotatably mounted on the rear mounting bracket 12 and the rotation axis is consistent with the rotating shaft 40, and the first Hall circuit board 512 is fixedly mounted on the rear mounting bracket 12.

[0036] The coaxial support structure of the rear mounting bracket 12 achieves dual optimization. On the one hand, it ensures that the first sensing magnet 511 and the rotating shaft 40 maintain precise coaxial rotation, so that the magnetic field change is strictly synchronized with the gear position. On the other hand, it provides a rigid fixing platform for the first Hall circuit board 512, eliminating the risk of displacement of the sensor component due to vibration or external force. This not only ensures the accuracy and stability of the Hall voltage signal, but also extends the component life by eliminating the risk of mechanical resonance, making it particularly suitable for the high-frequency, high-intensity operating environment of driving school vehicles.

[0037] Furthermore, the bracket 10 also includes a mounting plate 13. The second Hall sensor assembly 52 includes a second sensing magnet 521 and a second Hall circuit board 522. One end of the second sensing magnet 521 has a gear structure 521a and the other end has a second sensing hole 521b. The second Hall circuit board 522 is provided with a plurality of second Hall sensors 522c. The second sensing magnet 521 is rotatably mounted on the mounting plate 13. The second Hall circuit board 522 is fixed on the mounting plate 13. The outer side wall of the rotating shaft 40 has an external thread 42 that meshes with the gear structure 521a. The rotating shaft 40 moves along the axis to drive the second sensing magnet 521 to swing. When the second sensing hole 521b corresponds to the second Hall sensor 522c, the second Hall circuit board 522 generates a preset second light control electrical signal.

[0038] The second Hall circuit board 522 is provided with three second Hall sensors 522c. When the three second Hall sensors 522c cooperate with the second sensing hole 521b, they generate headlight signals, fog light signals and side marker light signals respectively.

[0039] By creatively using gear meshing to convert motion (external thread 42 engages with gear structure 521a), the axial linear motion of the rotating shaft 40 is precisely converted into the angular oscillation of the second induction magnet 521, realizing the motion transformation from axial displacement to angular change; combined with the non-contact alignment triggering mechanism of the induction hole 521b and the Hall sensor 522c, the problem of mechanical contact wear is completely avoided.

[0040] The switching of independent signal systems is completed synchronously by the single axial movement of the rotating shaft 40. While ensuring the independence of auxiliary light signals such as fog lights and position lights, the operation logic is significantly simplified and the failure rate is reduced. It is especially suitable for the reliability requirements of rapid switching of multi-mode lights under high-intensity use.

[0041] Furthermore, the sleeve 30 is provided with 7 positioning top openings 30a, which are composed of 6 control top openings 30b and 1 shut-off top opening 30c. The 6 control top openings 30b are arranged in 3 rows along the axis of the sleeve 30 and in 2 columns around the circumference of the sleeve 30. The shut-off top opening 30c is located on the row of control top openings 30b furthest from the knob 20.

[0042] It adopts a matrix arrangement design of 3 rows × 2 columns, which enables the 6 control ports 30b to respond to axial and circumferential operation actions at the same time, realizing the composite control logic of longitudinal light control and lateral near / far switching; the shut-off port 30c is independently set at the far end of the operation stroke, which not only ensures the convenience of function switching, but also effectively prevents accidental shutdown caused by misoperation, forming an ergonomic operation logic, which is especially suitable for high-frequency use scenarios such as driving school training.

[0043] More preferably, a limiting hole 31 is formed on the sleeve 30, and a limiting post 43 is provided on the rotating shaft 40. The limiting post 43 is movably disposed in the limiting hole 31. A clearance notch 31a is formed on the side of the limiting hole 31 away from the knob 20. When the ejector pin 41 corresponds to the shut-off top opening 30c, the limiting post 43 is located in the clearance notch 31a. The cooperation between the limiting hole 31 and the limiting post 43 ensures the normal rotation and axial movement of the rotating shaft 40, and through the special structure of the clearance notch 31a, provides a clear mechanical positioning feel when the ejector pin 41 is aligned with the shut-off top opening 30c, effectively preventing over-travel operation.

[0044] The car headlight knob also includes a knob sleeve 60, which is fixedly mounted on the front panel 11.

[0045] The added knob sleeve 60 not only enhances the installation stability of the knob 20, but also forms a double protection structure, which not only prevents dust from entering and affecting the internal sensing components, but also improves the smoothness of the overall operation.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car headlight knob, characterized in that, Includes brackets, knobs, sleeves, shafts, and electrical signal generation components; The bracket includes a front panel with a mounting hole, a sleeve fixed in the mounting hole, a rotating shaft rotatably mounted in the sleeve and movable in the axial direction of the sleeve, a knob fixedly connected to one end of the rotating shaft, a pin on the rotating shaft, and multiple positioning holes on the sleeve that cooperate with the pin. When the pin cooperates with different positioning holes as the rotating shaft rotates and / or moves axially, the car headlight knob is in different positions. The electrical signal generation component generates different lighting control signals according to the different gear levels, and the electrical signal generation component generates electrical signals using a non-contact triggering method.

2. The automotive headlight knob according to claim 1, characterized in that, The electrical signal generating component includes a first Hall sensor component; the first Hall sensor component includes a first sensing magnet and a first Hall circuit board, one end of the first sensing magnet is connected to the end of the rotating shaft, the rotating shaft is movably disposed relative to the first sensing magnet in the axial direction and fixed relative to the first sensing magnet in the circumferential direction; the other end of the first sensing magnet forms a first sensing hole, the first Hall circuit board is disposed at the end of the rotating shaft away from the knob, the first Hall circuit board is provided with a plurality of first Hall sensors, when the first sensing hole corresponds to the first Hall sensor, the first Hall circuit board generates a preset first light control electrical signal.

3. The car headlight knob according to claim 2, characterized in that, The first Hall circuit board is equipped with three first Hall sensors. When the three first Hall sensors cooperate with the first sensing hole, they generate a shutdown signal, a low beam signal, and a high beam signal, respectively.

4. The automotive headlight knob according to claim 3, characterized in that, The bracket also includes a rear mounting bracket, on which the first inductive magnet is rotatably mounted and whose rotation axis is consistent with the rotating shaft, and the first Hall circuit board is fixedly mounted on the rear mounting bracket.

5. The automotive headlight knob according to claim 2, characterized in that, The bracket also includes a mounting plate, and the electrical signal generating component further includes a second Hall sensor component. The second Hall sensor component includes a second sensing magnet and a second Hall circuit board. One end of the second sensing magnet has a gear structure and the other end has a second sensing hole. The second Hall circuit board is provided with multiple second Hall sensors. The second sensing magnet is rotatably mounted on the mounting plate. The second Hall circuit board is fixed on the mounting plate. The outer wall of the rotating shaft has an external thread that meshes with the gear structure. The rotating shaft moves along the axis to drive the second sensing magnet to swing. When the second sensing hole corresponds to the second Hall sensor, the second Hall circuit board generates a preset second light control electrical signal.

6. The automotive headlight knob according to claim 5, characterized in that, The second Hall circuit board is equipped with three second Hall sensors. When the three second Hall sensors cooperate with the second sensing hole, they generate headlight signals, fog light signals and side marker light signals respectively.

7. The automotive headlight knob according to claim 6, characterized in that, The sleeve is provided with 7 positioning top openings, which consist of 6 control top openings and 1 shut-off top opening. The 6 control top openings are arranged in 3 rows along the sleeve axis and in 2 columns around the sleeve. The shut-off top opening is located on the row of control top openings furthest from the knob.

8. The automotive headlight knob according to claim 1, characterized in that, A limiting hole is formed on the sleeve, and a limiting post is provided on the rotating shaft. The limiting post is movably disposed in the limiting hole. A clearance notch is formed on the side of the limiting hole away from the knob. When the ejector pin corresponds to the shut-off top opening, the limiting post is located in the clearance notch.

9. The automotive headlight knob according to claim 1, characterized in that, It also includes a knob sleeve, which is fixedly mounted on the front panel.

Images