HD Digital Projection Module Headlights
By employing a dimming structure and a three-stage heat dissipation system, the problems of edge halo and untimely heat dissipation in ADB module headlights have been solved, enabling precise beam adjustment and personalized control of HD digital projection module headlights, thus improving projection effects and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JINHELONG TECHNOLOGY CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional ADB module headlights have low LED array integration and a limited number of light source zones, resulting in obvious halo phenomena at the edge of the beam. They cannot achieve precise selective shading and dynamic light shape control. Furthermore, HD digital projection module headlights suffer from inadequate heat dissipation under high heat, leading to circuit damage.
It adopts a dimming structure and a three-level heat dissipation system. The dimming structure achieves beam adjustment through a substrate, adjusting screw and limiting spring. Combined with the four-point anti-vibration installation of aluminum heat sink and cooling fan, it achieves dynamic thermal management. The optical path is optimized with a four-lens group compound focusing architecture.
It achieves precise beam adjustment and personalized control, enhances interactivity and technological feel, and effectively solves heat dissipation problems, avoids circuit damage, and improves projection effect and user experience.
Smart Images
Figure CN224434196U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of HD projection module technology, specifically relating to an HD digital projection module headlight. Background Technology
[0002] Traditional ADB (Advanced Driver Assistance) module headlights suffer from low LED array integration and a limited number of light source zones, making it difficult to achieve precise selective masking of multiple targets (such as pedestrians and reflective traffic signs). Furthermore, insufficient optical resolution results in noticeable halo effects at the beam edges, hindering dynamic and optimal light pattern control in complex road environments. Existing projection effects are poor, and the interactive experience is lacking. ADB module headlights on the market generally suffer from poor projection effects and insufficient interactive experience. Their low LED light source integration (typically only tens to hundreds of light source units) severely limits module resolution, making it difficult to achieve accurate interactive pattern projection and resulting in a poor human-vehicle interaction experience. Therefore, existing HD digital projection modules are used to improve projection effects. However, existing HD digital projection module headlights generate a large amount of heat during precise projection, and inadequate heat dissipation can lead to circuit burnout, affecting normal operation. Therefore, it is crucial to develop an HD digital projection module headlight that overcomes these shortcomings. Utility Model Content
[0003] To solve at least one of the above-mentioned technical problems, this utility model provides an HD digital projection module headlight, comprising:
[0004] shell;
[0005] At least one HD module is installed inside the housing, and the housing is provided with a light-transmitting portion for cooperating with the HD module;
[0006] A module mounting bracket is connected to the HD module;
[0007] A dimming structure connects the module mounting bracket and the housing. The dimming structure controls the distance from the mounting bracket to the light-transmitting part to adjust the light emission effect.
[0008] Through the above technical solution, this utility model can achieve dimming through a dimming structure to meet personalized needs.
[0009] The dimming structure includes a substrate and an adjustment screw. An adjustment channel is formed on the substrate, and an adjustment groove is formed on at least a portion of the sidewall of the adjustment channel. The thread of the adjustment screw engages with the adjustment groove. The substrate is provided with a connecting part that engages with the module mounting bracket.
[0010] The connecting portion is at least partially a spherical protrusion, and the outer wall of the module mounting bracket is provided with a spherical groove that mates with the spherical protrusion.
[0011] The adjustment channel is at least partially slotted and also includes a limiting spring. At least one limiting protrusion is formed on the outer wall of the adjustment channel, and the limiting spring has a limiting through hole that corresponds to the limiting protrusion. The inner wall of the limiting spring forms a limiting surface for limiting the engagement of the adjustment screw with the adjustment slot. The spring design facilitates installation.
[0012] The limiting surface is an arc surface, and both sides of the limiting surface are connected to the limiting spring sheet through the connecting arc surface limiting arms. The limiting through hole is opened on the limiting arm.
[0013] Part of the adjusting screw engages with the adjusting groove to reduce friction.
[0014] The HD module includes a lens mount, a PCB board fixed to the lens mount, a heat sink fixed to the PCB board, a cooling fan fixed to the heat sink, a lens support assembly fixed to the lens mount, and a lens assembly. The heat sink is made of aluminum and is in contact with the PCB board for heat dissipation.
[0015] This utility model adopts a three-stage heat dissipation method. The PCB board and the aluminum heat sink are in direct surface contact, and the flatness of the contact surface is controlled within ±0.05mm to achieve high-precision bonding. The heat sink body adopts a cylindrical cold forging process, which greatly improves the effective heat dissipation area. The cooling fan adopts a four-point anti-vibration installation structure to maintain the optimal airflow gap with the heat sink, realize dynamic thermal management, and achieve the best heat dissipation effect.
[0016] The lens support assembly includes a first support and a second support, which limit the lens assembly and block light. The lens assembly includes a first lens, a second lens, a third lens, and a fourth lens, which are fixed by the lens support assembly. A four-lens compound focusing architecture is adopted, and optical path optimization is achieved through a precisely calibrated multi-stage lens system: the lens closest to the light source completes beam collimation and primary convergence, the subsequent dual lens groups achieve secondary focusing and aberration correction, and the outermost lens achieves focusing and aberration correction again.
[0017] The housing includes a lamp housing, a lampshade, and a decorative frame. The lampshade is used to optimize the lighting effect; the decorative frame is used to shield the internal structure; a driver board may also be installed inside the housing to provide stable power and current to the PCB board.
[0018] Compared with the prior art, the advantages of this utility model are: this utility model can adjust the HD module through the dimming structure, increase the interactivity with the user, improve personalized settings, achieve precise control, and increase the sense of technology and fun. Attached Figure Description
[0019] Figure 1 This is an exploded view of the present invention;
[0020] Figure 2 This is an exploded view of the HD module of this utility model;
[0021] Figure 3 This is a schematic cross-sectional view of the HD module of this utility model;
[0022] Figure 4 This is a perspective view of the dimming structure of this utility model;
[0023] Figure 5 For utility model Figure 4 A three-dimensional cross-section view;
[0024] Figure 6 A perspective view of the drive motor of the utility model;
[0025] Figure 7 A 3D view of the substrate structure to conceal the adjusting screw;
[0026] Figure label:
[0027] 11 Lamp housing; 12 Lamp shade; 13 Decorative frame; 14 Driver board;
[0028] 2HD module; 21 Lens mount; 22 PCB board; 23 Heat sink; 24 Cooling fan; 25 First bracket; 26 Second bracket; 27 First lens; 28 Second lens; 29 Third lens; 30 Fourth lens; 20 Lens cap;
[0029] 3-module mounting bracket;
[0030] 4. Dimming structure; 41. Substrate; 42. Adjusting screw; 43. Adjusting channel; 44. Adjusting groove; 45. Connecting part; 46. Spherical protrusion; 47. Limiting spring; 48. Limiting protrusion; 49. Limiting through hole; 50. Limiting surface; 51. Limiting arm; 52. Moving slider;
[0031] 5. Drive motor. Detailed Implementation
[0032] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.
[0033] Referring to the accompanying drawings, this utility model adopts the following technical solution: This utility model provides an HD digital projection module headlight, comprising:
[0034] shell;
[0035] At least one HD module 2 is installed inside the housing, and the housing is provided with a light-transmitting part for cooperating with the HD module 2; wherein the light-transmitting part can be a transparent material or a light-transmitting hole opened on the housing.
[0036] The module mounting bracket 3 is connected to the HD module 2;
[0037] The dimming structure 4 connects the module mounting bracket 3 and the outer shell. The dimming structure 4 controls the distance from the mounting bracket to the light-transmitting part to adjust the light emission effect.
[0038] Through the above technical solution, this utility model can achieve dimming through dimming structure 4, thus meeting personalized needs.
[0039] The dimming structure 4 includes a substrate 41 and an adjusting screw 42. An adjusting channel 43 is provided on the substrate 41. An adjusting groove 44 is provided on at least a portion of the side wall of the adjusting channel 43. The thread of the adjusting screw 42 is engaged with the adjusting groove 44. A connecting part 45 is provided on the substrate 41 to engage with the module mounting bracket 3.
[0040] The connecting portion 45 is at least partially a spherical protrusion 46, and the outer wall of the module mounting bracket 3 has a spherical groove that mates with the spherical protrusion 46. The base plate 41 has several movable sliders 52, which can be configured in a groove inside the outer casing, with the spherical protrusion 46 inserted into the spherical groove of the module mounting bracket 3. Alternatively, a guide block can be fixed inside the outer casing, and an adjusting screw 42 can be movably mounted on the guide block. Rotation of the adjusting screw 42 controls the movement of the base plate 41, thereby moving the module mounting bracket 3. The drive motor 5 can drive the adjusting screw 42 via a worm gear mechanism.
[0041] The module mounting bracket 3 of this utility model can be a commonly used frame structure. The lens base 21 of the HD module 2 of this utility model can be fixed on the frame structure, and the spherical groove can be opened on the frame structure.
[0042] The adjustment channel 43 is at least partially slotted and also includes a limiting spring 47. At least one limiting protrusion 48 is formed on the outer wall of the adjustment channel 43. The limiting spring 47 has a limiting through hole 49 that corresponds to the limiting protrusion 48. The inner wall of the limiting spring 47 forms a limiting surface 50 for limiting the engagement of the adjustment screw 42 with the adjustment groove 44. The spring facilitates installation.
[0043] The limiting surface 50 is an arc surface, and both sides of the limiting surface 50 are connected to the limiting arm 51 of the limiting spring 47 through the connecting arc surface. The limiting through hole 49 is opened on the limiting arm 51.
[0044] Part of the adjusting screw 42 engages with the adjusting groove 44 to reduce friction.
[0045] The HD module 2 includes a lens base 21, a PCB board 22 fixed to the lens base 21, a heat sink 23 fixed to the PCB board 22, a cooling fan 24 fixed to the heat sink 23, a lens support assembly fixed to the lens base 21, and a lens assembly. The heat sink 23 is an aluminum heat sink 23 and is in close contact with the PCB board 22 for heat dissipation. The lens base 21 can also be fixed to the heat sink 23.
[0046] This utility model adopts a three-stage heat dissipation method. The PCB board 22 is in direct surface contact with the aluminum heat sink 23, and the flatness of the contact surface is controlled within ±0.05mm to achieve high-precision fitting. The heat sink 23 body adopts a cylindrical cold forging process, which greatly improves the effective heat dissipation area. The cooling fan 24 adopts a four-point anti-vibration installation structure to maintain the optimal airflow gap with the heat sink 23, realize dynamic thermal management, and achieve the best heat dissipation effect.
[0047] The lens support assembly includes a first support 25 and a second support 26, which limit the lens assembly and block light. The lens assembly includes a first lens 37, a second lens 28, a third lens 29, and a fourth lens 30, which are fixed by the lens support assembly. A four-lens compound focusing architecture is adopted, and optical path optimization is achieved through a precisely calibrated multi-stage lens system: the lens closest to the light source completes beam collimation and primary focusing, the subsequent dual lens groups achieve secondary focusing and aberration correction, and the outermost lens achieves focusing and aberration correction again. It also includes a lens cap 20 mounted on the first support 25. The first support 25 can be fixed or clipped onto the second support 26.
[0048] The housing includes a lamp housing 11, a lampshade 12, and a decorative frame 13. The lampshade 12 is used to optimize the light effect; the decorative frame 13 is used to shield the internal structure; a driver board 14 may also be provided inside the housing to provide stable power and current to the PCB board 22.
[0049] This utility model can also fix a drive motor 5 inside the lamp housing 11. The output shaft of the drive motor 5 drives the adjustment screw, which can be connected using an existing spherical connection structure. The dimming structure 4 of this utility model can be provided with two, three or four. Due to the setting of the spherical protrusion 46, it can adapt to the angle problem caused by adjustment.
[0050] Compared with the prior art, the advantages of this utility model are: the HD module 2 can be adjusted through the dimming structure 4, which increases the interactivity with the user, improves personalized settings, achieves precise control, and increases the sense of technology and fun.
[0051] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A headlight with an HD digital projection module, characterized in that: include: shell; At least one HD module (2) is installed inside the housing, and the housing is provided with a light-transmitting part for cooperating with the HD module (2); The module mounting bracket (3) is connected to the HD module (2); The dimming structure (4) connects the module mounting bracket (3) and the outer shell. The dimming structure (4) controls the distance from the mounting bracket to the light-transmitting part to adjust the light-emitting effect.
2. The HD digital projection module headlight according to claim 1, characterized in that: The dimming structure (4) includes a substrate (41) and an adjustment screw (42). An adjustment channel (43) is provided on the substrate (41). An adjustment groove (44) is provided on at least part of the side wall of the adjustment channel (43). The thread of the adjustment screw (42) is engaged with the adjustment groove (44). A connection part (45) is provided on the substrate (41) to engage with the module mounting bracket (3).
3. The HD digital projection module headlight according to claim 2, characterized in that: The connecting part (45) is at least partially a spherical protrusion (46), and the outer wall of the module mounting bracket (3) is provided with a spherical groove that mates with the spherical protrusion (46).
4. The HD digital projection module headlight according to claim 2, characterized in that: The adjustment channel (43) is at least partially slotted and also includes a limiting spring (47). At least one limiting protrusion (48) is provided on the outer wall of the adjustment channel (43). A limiting through hole (49) is provided on the limiting spring (47) to correspond with the limiting protrusion (48). The inner wall of the limiting spring (47) forms a limiting surface (50) for limiting the engagement of the adjustment screw (42) with the adjustment groove (44).
5. The HD digital projection module headlight according to claim 4, characterized in that: The limiting surface (50) is an arc surface. Both sides of the limiting surface (50) are connected to the limiting arms (51) of the limiting spring (47) through the connecting arc surface. The limiting through hole (49) is opened on the limiting arm (51). Part of the adjusting screw (42) is screwed into the adjusting groove (44).
6. The projection module headlight according to claim 1, characterized in that: The HD module (2) includes a lens base (21), a PCB board (22) fixed to the lens base (21), a heat sink (23) fixed to the PCB board (22), a cooling fan (24) fixed to the heat sink (23), a lens bracket assembly fixed to the lens base (21), and a lens assembly.
7. The projection module headlight according to claim 6, characterized in that: The heat sink (23) is an aluminum heat sink (23) and is attached to the PCB board (22) for heat dissipation.
8. The HD digital projection module headlight according to claim 6, characterized in that: The lens support assembly includes a first support (25) and a second support (26), which limit the lens assembly and block light.
9. The HD digital projection module headlight according to claim 6, characterized in that: The lens assembly includes a first lens (37), a second lens (28), a third lens (29), and a fourth lens (30), which are fixed by a lens bracket assembly.
10. The HD digital projection module headlight according to claim 1, characterized in that: The outer casing includes a lamp housing (11), a lamp shade (12), and a decorative frame (13).