Long-service-life passenger car headlamp height adjusting switch

Abstract

The utility model discloses a passenger car headlamp height adjusting switch with long service life, which is provided with a first mounting seat, a bayonet socket is arranged at the bottom of the first mounting seat, and the passenger car headlamp height adjusting switch is characterized in that an adjusting knob is rotatably arranged at the top of the first mounting seat, and a magnetic pressing block is movably arranged in the adjusting knob; the adjusting knob and the magnetic pressing block are connected through a spring, a sensing chip corresponding to the adjusting knob is arranged in the first mounting base, and a plurality of extrusion sensing parts are arranged on the sensing chip in a surrounding mode along the rotating path of the adjusting knob; magnetic attraction blocks are arranged at the positions, corresponding to the extrusion induction parts, of the first mounting base, the magnetic attraction blocks can attract the magnetic pressing blocks so that the magnetic pressing blocks can be tightly pressed on the extrusion induction parts, and a damping limiting assembly is arranged corresponding to the adjusting knob. The headlamp height adjusting switch is simple in structure and reasonable in design, and the service life of the headlamp height adjusting switch can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a switch, in particular to a long-life headlamp height adjustment switch for a passenger car. Background Art

[0002] The headlamp height adjustment switch is used to adjust the height of the headlamps of a passenger car, so as to adapt to different driving environments and road conditions and provide sufficient vision for the driver. At present, the structure of the headlamp height adjustment switch on the market mainly includes a knob. By controlling the knob to rotate to different angles, the pressure spring piece on the knob tightly presses the corresponding extrusion sensing part on the sensing chip to realize the signal input for headlamp height adjustment. The defect of adopting this structure is that since the spring piece is always tightly pressed on the sensing chip, when the knob rotates, there will be a large frictional force between the spring piece and the sensing chip. During long-term use, large wear will occur between the spring piece and the sensing chip. Coupled with the attenuation of the spring force of the spring piece, the pressing force between the spring piece and the sensing chip will become smaller. When this force is less than the sensing pressure of the sensing chip, the headlamp height adjustment switch will fail. Summary of the Utility Model

[0003] In view of the deficiencies of the background art, the technical problem to be solved by the present utility model is to provide a long-life headlamp height adjustment switch for a passenger car to solve the above problems.

[0004] To this end, the present utility model is implemented as follows:

[0005] A long-life headlamp height adjustment switch for a passenger car has a first mounting seat. A plug socket is provided at the bottom of the first mounting seat. It is characterized in that: an adjustment knob is rotatably provided on the top of the first mounting seat. A magnetic pressing block is movably provided inside the adjustment knob. The adjustment knob and the magnetic pressing block are connected by a spring. An induction chip corresponding to the adjustment knob is provided inside the first mounting seat. A plurality of extrusion sensing parts are arranged in a ring along the rotation path of the adjustment knob on the induction chip. A magnetic attraction block is provided at each position corresponding to each extrusion sensing part on the first mounting seat. The magnetic attraction block can attract the magnetic pressing block so that the magnetic pressing block tightly presses on the extrusion sensing part. A damping limit component is provided corresponding to the adjustment knob.

[0006] Anti-slip grooves are circumferentially formed on the arc-shaped side wall of the adjustment knob, and gear marks are circumferentially arranged on one side of the anti-slip grooves.

[0007] A limit protrusion is provided on the arc-shaped side wall of the adjustment knob extending outward. A first limit step and a second limit step that can abut against the limit protrusion are provided inside the first mounting seat.

[0008] The top of the first mounting base is connected to the decorative ceiling board, and an emergency call button is also integrated on the decorative ceiling board. The emergency call button is arranged on the second mounting base.

[0009] The damping limit component includes limit holes formed around the first mounting base. The limit holes correspond to the extrusion sensing parts one by one. Elastic damping protrusions are arranged on the adjusting knob, and the elastic damping protrusions can be snapped into the limit holes.

[0010] For a long-life passenger car headlight height adjustment switch with the above technical solution, by movably arranging a magnetic pressing block in the adjusting knob and cooperatively arranging a magnetic attracting block in the mounting base to attract the magnetic pressing block to press tightly on the extrusion sensing part of the induction chip, during long-term use, the magnetic attenuation of the magnetic attracting block and the magnetic pressing block is very small, which can ensure that the magnetic pressing block provides sufficient pressure to the extrusion sensing part, thereby realizing the input of the headlight height adjustment signal, effectively improving its service life and working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present utility model has the following drawings:

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a structural diagram of a part of the first mounting base of the present utility model;

[0014] Figure 3 is Figure 1 a view after removing the decorative ceiling board, the emergency call button, the second mounting base and a part of the first mounting base;

[0015] Figure 4 is a structural diagram of the adjusting knob of the present utility model;

[0016] Figure 5 is a cross-sectional view of the adjusting knob of the present utility model;

[0017] Figure 6 is Figure 3 a view after removing the adjusting knob;

[0018] Figure 7 is Figure 6 a view after removing the induction chip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] As shown in the figure, a long-life headlamp height adjustment switch for a passenger car disclosed by the present utility model has a first mounting seat 2. A plug socket 1 is provided at the bottom of the first mounting seat 2. An adjustment knob 4 is rotatably provided at the top of the first mounting seat 2. Further, anti-slip grooves 10 are circumferentially formed on the arc-shaped side wall of the adjustment knob 4, facilitating the rotation of the adjustment knob 4 by a finger. A gear position mark 11 is circumferentially provided on one side of the anti-slip grooves 10. A limiting protrusion 12 extends outwardly on the arc-shaped side wall of the adjustment knob 4. A first limiting step 7 and a second limiting step 9 that can abut against the limiting protrusion 12 are provided inside the first mounting seat 2. By providing the limiting steps to abut against the limiting protrusion 12, the rotation range of the adjustment knob 4 can be limited to ensure that it rotates within a suitable angular range. A magnetic pressing block 15 is movably provided inside the adjustment knob 4. The adjustment knob 4 and the magnetic pressing block 15 are connected by a spring 16. An induction chip 13 corresponding to the adjustment knob 4 is provided inside the first mounting seat 2. A plurality of extrusion induction parts 17 are circumferentially provided on the induction chip 13 along the rotation path of the adjustment knob 4. Magnetic attraction blocks 18 are provided at positions corresponding to the respective extrusion induction parts 17 on the first mounting seat 2. The magnetic attraction blocks 18 can attract the magnetic pressing block 15, causing the magnetic pressing block 15 to tightly press on the extrusion induction parts 17. In addition, it should be noted that the magnetic fields generated by the magnetic pressing block 15 and the magnetic attraction blocks 18 are small, and the induction chip 13 is internally provided with relevant circuit designs for counteracting electromagnetic interference to ensure that the normal operation of the induction chip 13 is not affected by the magnetic fields of the magnetic pressing block 15 and the magnetic attraction blocks 18. A damping limiting component is provided corresponding to the adjustment knob 4. Specifically, the damping limiting component includes limiting holes 8 circumferentially formed on the first mounting seat 2. The limiting holes 8 correspond to the extrusion induction parts 17 one by one. Elastic damping protrusions 14 are provided on the adjustment knob 4. The elastic damping protrusions 14 can be inserted into the limiting holes 8. When the adjustment knob 4 rotates to one of the gears, the elastic damping protrusions 14 are inserted into the corresponding limiting holes 8 and feedback a damping feel to prompt the user that the rotation is in place, providing a better user experience. The top of the first mounting seat 2 is connected to a decorative buckle plate 3. An emergency call button 5 is also integrated on the decorative buckle plate 3. The emergency call button 5 is provided on a second mounting seat 6, which can enrich the functions and facilitate the installation of the emergency call button 5.

[0020] The working principle of the present utility model is as follows: When the vehicle headlight is turned on during normal driving, the magnetic pressing block 15 on the adjusting knob 4 is attracted by one of the magnetic attracting blocks 18, causing the magnetic pressing block 15 to tightly press on one of the extrusion sensing parts 17 and slightly stretch the spring 16; When it is necessary to adjust the height of the headlight, by rotating the adjusting knob 4, during the rotation of the adjusting knob 4, the magnetic pressing block 15 moves away from the magnetic attracting block 18, and the magnetic attracting force it receives decreases. The spring 16 will drive the magnetic pressing block 15 to slightly move away from the sensing chip 13. As the adjustment knob 4 rotates to the required adjustment gear, the magnetic pressing block 15 is attracted by the magnetic attracting block 18 of this gear and tightly presses on the corresponding extrusion sensing part 17. The sensing chip 13 feeds back information to the control, and then the angle of the vehicle headlight is adjusted.

[0021] With this structure of the present utility model, by movably arranging a magnetic pressing block inside the adjusting knob and cooperatively arranging a magnetic attracting block inside the mounting seat to attract the magnetic pressing block to tightly press on the extrusion sensing part of the sensing chip, during long-term use, the magnetic attenuation of the magnetic attracting block and the magnetic pressing block is very small, which can ensure that the magnetic pressing block provides sufficient pressure to the extrusion sensing part, thereby realizing the input of the headlight height adjustment signal and effectively improving its service life and working stability.

Claims

1. A long-life passenger car headlight height adjustment switch, comprising a first mounting seat (2), a plug socket (1) being arranged at the bottom of the first mounting seat (2), characterized in that: An adjusting knob (4) is rotatably provided at the top of the first mounting seat (2), a magnetic pressing block (15) is movably provided in the adjusting knob (4), the adjusting knob (4) and the magnetic pressing block (15) are connected via a spring (16), a sensing chip (13) corresponding to the adjusting knob (4) is provided in the first mounting seat (2), a plurality of squeezing sensing parts (17) are arranged around the sensing chip (13) along the rotation path of the adjusting knob (4), the first mounting seat (2) is provided with a magnetic suction block (18) at a position corresponding to each squeezing sensing part (17), the magnetic suction block (18) can attract the magnetic pressing block (15), so that the magnetic pressing block (15) is tightly pressed against the squeezing sensing part (17), and a damping limit assembly is provided corresponding to the adjusting knob (4).

2. A long-life passenger car headlight height adjustment switch according to claim 1, characterized in that An anti-skid groove (10) is provided on the arc-shaped side wall of the adjusting knob (4), and a gear position mark (11) is provided on one side of the anti-skid groove (10).

3. A long-life passenger car headlight height adjustment switch according to claim 1, characterized in that A limiting protrusion (12) is provided on the arc-shaped side wall of the adjusting knob (4) so ​​as to extend outwards, and a first limiting step (7) and a second limiting step (9) which can abut against the limiting protrusion (12) are provided inside the first mounting seat (2).

4. A long-life passenger car headlight height adjustment switch according to claim 1, characterized in that The top of the first mounting seat (2) is connected to the decorative gusset plate (3), and an emergency call button (5) is also integrated on the decorative gusset plate (3). The emergency call button (5) is arranged on the second mounting seat (6).

5. A long-life passenger car headlight height adjustment switch according to claim 1, characterized in that The damping limit assembly comprises a limit hole (8) circumferentially opened on the first mounting seat (2), the limit hole (8) corresponding to the squeeze sensing portion (17) one by one, and an elastic damping protrusion (14) is provided on the adjusting knob (4), and the elastic damping protrusion (14) can be inserted into the limit hole (8).

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