A high beam and low beam lens combination headlamp with internal dimming

Abstract

The utility model provides a high-low beam lens combination headlamp which can be adjusted internally, the headlamp comprises a lamp body, a high beam module and a low beam module, and the core lies in that both are provided with an adjusting structure which facilitates optical calibration inside the lamp body. The low beam module is matched with an adjustable support leg through a rigid support leg on a first support, the adjustable support leg is connected with the lamp body through an elastic first rubber pad, and the low beam irradiation angle can be changed by adjusting a corresponding bolt. The lens of the high beam module is rotationally connected with the support through a convex shaft, the lateral connecting lug is fixed to the lamp body through a second rubber pad and a bolt, the lens can be rotated around the shaft by adjusting the bolt, and the high beam angle adjustment is realized. The utility model utilizes the elastic deformation of the rubber pad to provide an adjusting space, has a simple and reliable structure, can effectively compensate manufacturing and assembly errors, ensures that the high beam and low beam light shapes accurately coincide and meets the regulatory requirements.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to an automotive headlight with internal dimming function. Background Technology

[0002] With the increasing adoption of LED technology in automotive lighting, the design of headlight optical systems using independent lens modules is becoming more and more common. These headlights typically include separate high beam and low beam lens modules to achieve different lighting functions.

[0003] However, existing headlights with lens combinations typically lack effective internal dimming mechanisms for their high beam and low beam modules after assembly into the lamp body. Due to shrinkage and deformation that may occur during component injection molding, as well as unavoidable cumulative errors during assembly, the following serious problems arise: ① For low beam modules, if they contain multiple optical units (such as multiple lenses), the light patterns produced by these units may not be precisely aligned, resulting in blurring or ghosting, which seriously affects the clarity of the low beam cutoff line and the uniformity of illumination. ② Between the high beam module and the low beam module, the optical axes of the two may be offset relative to each other, resulting in the centers of the high beam spot and the low beam spot not matching, and thus failing to form an ideal light pattern superposition effect.

[0004] The aforementioned optical deviations will not only significantly reduce the actual lighting performance of the headlights, but may also cause the final light pattern to fail to meet the mandatory automotive lighting regulations and standards of the country or region (such as regulations on illuminance, cutoff line, and dark cutoff line), resulting in product non-compliance.

[0005] Therefore, there is an urgent need for a mechanism that can independently, precisely, and conveniently adjust the high beam and low beam lens modules within the headlight assembly to correct assembly and manufacturing errors and ensure optical performance and regulatory compliance. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a headlight with internally adjustable high and low beam lenses, which can achieve independent, stepless, and stable adjustment of the optical axis angles of the high beam module and the low beam module inside the lamp body, thereby accurately correcting the light shape and ensuring optical quality and regulatory compliance.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a headlight with adjustable high and low beam lenses, comprising a lamp body, a high beam module, and a low beam module, characterized in that: the low beam module includes a first bracket, a low beam lens and a low beam LED light source mounted on the first bracket, the first bracket including a first mounting base, a first support foot and a first adjustment foot, the first support foot being connected to the lamp body by a first bolt, a first rubber pad being provided between the first adjustment foot and the lamp body, and a second bolt passing through the first adjustment foot and the first rubber pad in sequence and locking onto the lamp body; the high beam module includes a second bracket, a high beam lens and a high beam LED light source mounted on the second bracket, the second bracket including a second mounting base, the high beam lens being rotatably connected to the second mounting base via convex shafts on both sides, a connecting ear being provided on one side of the high beam lens, a second rubber pad being provided between the connecting ear and the lamp body, and a third bolt passing through the connecting ear and the second rubber pad in sequence and locking onto the lamp body. The principle of this invention is as follows: By tightening or loosening the second bolt, the first rubber pad can be compressed or released, thereby slightly changing the height of the first adjusting foot relative to the lamp body. This causes the entire first bracket to tilt around the fulcrum formed by the first supporting foot, ultimately achieving the vertical angle adjustment of the high beam. By loosening the third bolt, an external force is applied to cause the connecting ear to overcome the elastic force of the second rubber pad and move, thereby driving the high beam lens to rotate around its convex axis, thus achieving the vertical angle adjustment of the high beam. After adjustment, tightening the third bolt will fix the beam.

[0008] As an improvement, a total of two first support feet are provided, and the two first support feet and one first adjustment foot are arranged in a triangle.

[0009] As an improvement, the low beam module further includes a first pressure ring, which presses against the low beam lens and is snapped into connection with the first mounting base; the high beam module further includes a second pressure ring, which presses against the high beam lens and is snapped into connection with the second mounting base.

[0010] As an improvement, the bottom of the lamp body is provided with a first bolt post corresponding to the first support foot, a second bolt post corresponding to the first adjustment foot, and a third bolt post corresponding to the connecting ear. The top of the second bolt post is provided with a first groove, and the first rubber pad is inserted into the first groove. The top of the third bolt post is provided with a second groove, and the second rubber pad is inserted into the second groove.

[0011] As an improvement, the low beam module and the high beam module are arranged vertically, with a first functional module between the high beam module and the low beam module, and second functional modules on the left and right sides of the first functional module. The light source module, the low beam module, the first functional module and the second functional module form a central light-emitting area, and a ring-shaped third functional module is provided around the central light-emitting area.

[0012] The beneficial effects of this utility model compared with the prior art are: 1. Convenient internal dimming function: By setting "rigid support + elastic adjustment foot" in the low beam module and "rotating lens + elastic connecting ear" in the high beam module, and with the help of rubber pads, the staff can use simple tools (screwdriver) to make precise and independent adjustments to the high and low beam beams directly inside before the lamp body is completely sealed, which completely compensates for the accumulated errors of the upstream process. 2. Simple and reliable structure, low cost: The dimming mechanism relies on the elastic deformation of the rubber pad and the bolt locking, eliminating the need for complex gears, screws and other precision transmission mechanisms, which greatly simplifies the structure and reduces manufacturing costs and failure rate; 3. Excellent adjustment stability: The three-point triangular support layout of the low beam module and the damping characteristics of the rubber pads ensure a smooth adjustment process and prevent spontaneous displacement due to vibration after adjustment. The positioning grooves on the lamp body bolt posts further ensure the stability of the rubber pad position; 4. High modularity and integration: The layout of each functional module is reasonable. While realizing the core dimming function, it meets the design requirements of modern automotive headlights for multiple signals and high aesthetics, which facilitates overall assembly and functional expansion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the lighting module layout.

[0014] Figure 2 This is an exploded view of the high and low beam modules. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a headlight with adjustable high and low beam lenses mainly includes a lamp body 1, a high beam module 3, and a low beam module 2.

[0017] like Figure 1 , 2 As shown, the lamp body 1 serves as the structural carrier of the entire headlight, and its interior is designed with space for installing various modules. At a specific location on the bottom of the lamp body 1, multiple bolt posts are integrally formed, including a first bolt post 11 and a second bolt post 12 for installing the low beam module 2, and a third bolt post 13 for installing the low beam module 3. The tops of the second bolt post 12 and the third bolt post 13 are respectively machined with a first groove 121 and a second groove 131.

[0018] The low beam module 2, as an independent optical sub-module, includes a first bracket 21 and a low beam lens 22. A first mounting base 211 is provided on the first bracket 21. The low beam lens 22 is pressed and fixed onto the first mounting base 211 by a first retaining ring 23. The periphery of the first retaining ring 23 is engaged with a retaining plate on the first bracket 21 by claws. The low beam LED light source is positioned and installed so that the emitted light can accurately enter the low beam lens 22. Two first support feet 212 and one first adjustment foot 213 extend outwards from the first bracket 21, forming a stable triangular arrangement.

[0019] During installation, first place the first rubber pad 24 into the first groove 121 on top of the second bolt post 12. Then, place the near-light module 2 into position, aligning the mounting holes of the two first support feet 212 with the first bolt post 11, and aligning the mounting hole of the first adjusting foot 213 with the second bolt post 12 where the first rubber pad 24 has been placed. Next, use the first bolt 26 to pass through the first support foot 212 and lock it into the first bolt post 11 for rigid fixation; use the second bolt 25 to pass through the first adjusting foot 213 and the first rubber pad 24 in sequence, and then lock it into the second bolt post 12. During initial assembly, the second bolt 25 does not need to be fully locked.

[0020] During dimming, the operator uses a tool to tighten the second bolt 25. When the second bolt 25 is tightened, the first adjusting foot 213 presses down on the first rubber pad 24, causing it to elastically compress and deform, resulting in a decrease in the height of the first adjusting foot 213 relative to the lamp body 1. Since the two first supporting feet 212 are rigidly fixed, the entire first bracket 21 will use the axis formed by these two fulcrums as an axis to drive the low beam lens 22 to produce a slight pitch rotation, thereby changing the emission angle of the low beam. Conversely, loosening the second bolt 25 causes the first rubber pad 24 to spring back, causing the first adjusting foot 213 to rise relatively, and the beam angle is adjusted in the opposite direction. After adjusting to the ideal position, the second bolt 25 is finally tightened. The elasticity of the first rubber pad 24 provides adjustment space and also serves to prevent loosening and resist vibration after tightening.

[0021] like Figure 1 , 2As shown, the high beam module 3 includes a second bracket 31, a high beam lens 32 mounted on the second bracket 31, and a high beam LED light source. The high beam lens 32 of the high beam module 3 is mounted on a second mounting base 311 via two convex shafts 321 on both sides, allowing it to rotate freely; the convex shafts 321 are pressed together by a second pressure ring 36. Its side connecting lugs 322 are connected to a third bolt post 13 via a third bolt 35 and a second rubber pad 34. The second groove 131 at the top of the third bolt post 13 is used to fix the second rubber pad 34. When adjusting the high beam angle, loosen the third bolt 35, and then directly move the high beam lens 32 or its connecting lugs 322; the lens will then rotate around the axis of the convex shaft 321, compressing or stretching the second rubber pad 34. After the high beam spot is centered, tighten the third bolt 35 to fix it in place.

[0022] In a more complete embodiment, the low beam module 2 and the high beam module 3 are arranged vertically within the lamp body 1. A first functional module 4 is installed between them, which can function as daytime running lights or turn signals. Symmetrically installed on the left and right sides of the first functional module 4 are second functional modules 5, which compensate for the low beam. These core lighting modules collectively form a visually central light-emitting area. Around the outer edge of this central light-emitting area, a ring of third functional modules 6 is installed, which functions as front position lights, daytime running lights, and turn signals.

Claims

1. A headlight with internally adjustable high and low beam lenses, comprising a lamp body, a high beam module, and a low beam module, characterized in that: The low beam module includes a first bracket, a low beam lens mounted on the first bracket, and a low beam LED light source. The first bracket includes a first mounting base, a first support foot, and a first adjusting foot. The first support foot is connected to the lamp body by a first bolt. A first rubber pad is provided between the first adjusting foot and the lamp body. A second bolt passes through the first adjusting foot and the first rubber pad in sequence and is then locked onto the lamp body. The high beam module includes a second bracket, a high beam lens mounted on the second bracket, and a high beam LED light source. The second bracket includes a second mounting base. The high beam lens is rotatably connected to the second mounting base via convex shafts on both sides. A connecting ear is provided on one side of the high beam lens. A second rubber pad is provided between the connecting ear and the lamp body. A third bolt passes through the connecting ear and the second rubber pad in sequence and is then locked onto the lamp body.

2. The headlight with internally adjustable high and low beam lenses according to claim 1, characterized in that: There are two first support feet, which are arranged in a triangle with one first adjustment foot.

3. A headlight with internally adjustable high and low beam lenses according to claim 1, characterized in that: The low beam module further includes a first pressure ring, which presses against the low beam lens and is snapped into connection with the first mounting base; the high beam module further includes a second pressure ring, which presses against the high beam lens and is snapped into connection with the second mounting base.

4. A headlight with internally adjustable high and low beam lenses according to claim 1, characterized in that: The bottom of the lamp body is provided with a first bolt post corresponding to the first support foot, a second bolt post corresponding to the first adjustment foot, and a third bolt post corresponding to the connecting ear. The top of the second bolt post is provided with a first groove, and the first rubber pad is inserted into the first groove. The top of the third bolt post is provided with a second groove, and the second rubber pad is inserted into the second groove.

5. A headlight with internally adjustable high and low beam lenses according to claim 1, characterized in that: The low beam module and the high beam module are arranged vertically, with a first functional module between them. Second functional modules are arranged on the left and right sides of the first functional module. The light source module, the low beam module, the first functional module, and the second functional module form a central light-emitting area. A third functional module is arranged in a ring around the central light-emitting area.

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