HD module capable of realizing far and near field projection adjustment
By adjusting the relative position of the light source and the lens through the drive components and transmission mechanism, the problem of fixed projection angle in the vehicle headlight module is solved, enabling flexible adjustment of near and far field projection and improving the multi-scenario adaptability and projection effect of the vehicle headlight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHENBO ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
In existing automotive lighting modules, the positions of the lens and chip are fixed, resulting in a fixed projection angle, which cannot meet the needs of multiple scenarios, especially the high beam effect is difficult to guarantee.
The drive component moves the light source sub-assembly up and down, changing the relative position of the light source and the lens. Combined with the transmission mechanism and control board, it realizes the adjustment of near and far field projection. The transmission form of gears, lead screws or slide rails is used to precisely control the movement of the light source.
It enables flexible adjustment of the projection angle, meets the projection requirements from near field to far field, and improves the adaptability of vehicle lights to different application scenarios and the projection effect.
Smart Images
Figure CN224229795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting module technology, and more specifically, to an HD module that can achieve near-field and far-field projection adjustment. Background Technology
[0002] With the advancement of automotive intelligence, headlights are no longer limited to simple illumination and signaling functions. OEMs are gradually increasing their demands for the pixel count and interactive functions of headlights, leading to a gradual upgrade towards pixel-style headlights. Modules with projection interaction functions are also being used in more and more mid-to-high-end models.
[0003] The existing solution has a fixed relative position between the lens and the chip, resulting in a fixed projection angle and a limited range of applications, which cannot meet customer needs. Due to the limitations of the chip and the lens, it is difficult to achieve a large projection angle, so it is difficult to meet the requirements for projection in front of the vehicle in order to ensure the high beam effect. Utility Model Content
[0004] In view of this, in order to solve the above problems, this utility model proposes an HD module that can realize near and far field projection adjustment. The drive component 5 drives the light source sub-assembly 6 to move up and down, changing the relative position of the light source 621 and the lens 1, thereby adjusting the near and far field distribution of the projection image. The light source sub-assembly 6 cooperates with the slide groove 31 of the lens bracket 3 through the guide structure 611 on the heat sink 61 to ensure the movement guidance. The transmission mechanism 52 can adopt a gear 521, lead screw or slide rail and other transmission forms, combined with the control board 4 to realize near and far field projection adjustment.
[0005] An HD module capable of adjusting near and far field projection includes a lens 1, a dimming bracket 2, a lens bracket 3, a drive assembly 5, and a light source sub-assembly 6. One end of the dimming bracket 2 is threaded to the lens 1, and the other end is threaded to the lens bracket 3. One side of the light-emitting surface of the light source sub-assembly 6 is connected to the lens bracket 3. The drive assembly 5 is provided on the side of the lens bracket 3. The light source sub-assembly 6 includes a heat sink 61 and a lamp plate 62. One side of the heat sink 61 is connected to the lamp plate 62, and a light source 621 is provided on the lamp plate 62. At least two guide structures 611 are symmetrically provided on the heat sink 61. The lens bracket 3 is provided with a sliding groove 31 that matches the guide structure 611. The drive assembly 5 includes a motor 51 and a transmission mechanism 52. The transmission mechanism 52 is connected to the heat sink 61 and is used to drive the heat sink 61 to move up and down along the sliding groove 31 to change the relative position of the light source 621 and the lens 1, thereby achieving near and far field projection adjustment.
[0006] Furthermore, the transmission mechanism 52 is a gear 521 transmission assembly, which includes a gear 521 and a rack structure 522. The gear 521 is located at the output end of the motor 51, and the rack structure 522 is fixed on the radiator 61. The gear 521 meshes with the rack structure 522.
[0007] In some embodiments, the rack structure 522 is integrally formed with the heat sink 61.
[0008] Furthermore, when the gear 521 rotates clockwise, it causes the heat sink 61 to move downward, the light source 621 to move downward, and the projection imaging position to move upward; when the gear 521 rotates counterclockwise, it causes the heat sink 61 to move upward, the light source 621 to move upward, and the projection imaging position to move downward.
[0009] In some embodiments, the guide structure 611 is a columnar protrusion, the slide groove 31 is a straight or arc-shaped groove, and the transmission mechanism 52 is a lead screw or slide rail, which drives the radiator 61 to move up and down through linear motion.
[0010] Furthermore, the guide structure 611 and the slide groove 31 are arranged symmetrically in at least four sets, and the length of the slide groove 31 is greater than the travel of the guide structure 611, so that the connection is stable and not easily shaken when adjusting up and down.
[0011] Furthermore, the vertical movement range of the light source 621 is -8mm to +8mm, and the movement range is controlled by the length of the slide 31 or the stroke of the motor 51.
[0012] Furthermore, the light source is moved up by 8mm, and the image is moved down by 14.7°; the light source is moved down by 8mm, and the image is moved up by 14.3°, to meet the projection requirements of the vehicle headlights from the near field to the far field.
[0013] Furthermore, a locking member 612 is provided between the guide structure 611 and the slide groove 31. The locking member 612 is threadedly connected to the guide structure 611 to prevent the radiator 61 from disengaging from the slide groove 31, prevent locking, and allow fine adjustment.
[0014] Furthermore, the lens bracket 3 is provided with a control board 4, which is electrically connected to the drive assembly 5. The control board 4 controls the forward and reverse rotation and the movement accuracy of the drive assembly 5 to realize the up and down movement of the light source sub-assembly 6 relative to the lens 1.
[0015] Furthermore, the light source assembly 6 also includes a fan 63 and a fan bracket 64. The fan bracket 64 is located on the side of the heat sink 61 away from the lamp plate 62, and the fan 63 is connected to the bottom of the fan bracket 64.
[0016] Furthermore, the adjustment accuracy of the drive component 5 is at the 0.5mm level, and the fine adjustment of the projection imaging position is achieved through closed-loop feedback control.
[0017] The beneficial effects of this utility model are as follows: This utility model proposes an HD module that can realize near-field and far-field projection adjustment, including a lens 1, a dimming bracket 2, a lens bracket 3, a drive assembly 5, and a light source sub-assembly 6. One end of the dimming bracket 2 is connected to the lens 1 by a thread, and the other end is connected to the lens bracket 3 by a thread. One side of the light-emitting surface of the light source sub-assembly 6 is connected to the lens bracket 3. The drive assembly 5 is provided on the side of the lens bracket 3. The light source sub-assembly 6 includes a heat sink 61 and a lamp plate 62. One side of the heat sink 61 is connected to the lamp plate 62, and a light source 621 is provided on the lamp plate 62. At least two guide structures 611 are symmetrically provided on the heat sink 61. The lens bracket 3 is provided with a sliding groove 31 that matches the guide structure 611. The drive assembly 5 includes a motor 51 and a transmission mechanism 52. The transmission mechanism 52 is connected to the heat sink 61 and is used to drive the heat sink 61 to move up and down along the sliding groove 31 to change the relative position of the light source 621 and the lens 1, thereby realizing near-field and far-field projection adjustment. Attached Figure Description
[0018] Figure 1 This is an overall structural diagram of the HD module of this utility model that can realize near-field and far-field projection adjustment.
[0019] Figure 2 This is an exploded view of the present invention, which enables adjustment of near and far field projection.
[0020] Figure 3 This is an exploded view of the light source sub-assembly of the HD module of this utility model, which enables near-field and far-field projection adjustment.
[0021] Figure 4 This is a cross-sectional view of the gear and rack mechanism connection of the HD module of this utility model, which can realize the adjustment of near and far field projection.
[0022] Figure 5 This is a side sectional view of the guide structure and the slide groove connection of the HD module of this utility model, which can realize the adjustment of near and far field projection.
[0023] Figure 6 This is a schematic diagram illustrating the change in the projection imaging position of the HD module of this invention, which enables adjustment of near and far field projection.
[0024] Figure 7 This is a connection structure diagram of the lens bracket and control board of the HD module of this utility model, which can realize the adjustment of near and far field projection.
[0025] Explanation of main component symbols
[0026] Lens 1, dimming bracket 2, lens bracket 3, slide rail 31, control board 4, drive assembly 5, motor 51, transmission mechanism 52, gear 521, rack and pinion structure 522, light source sub-assembly 6, heat sink 61, guide structure 611, locking part 612, lamp board 62, light source 621, fan 63, fan bracket 64.
[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation Example 1:
[0028] An HD module capable of adjusting near and far field projection includes a lens 1, a dimming bracket 2, a lens bracket 3, a drive assembly 5, and a light source sub-assembly 6. One end of the dimming bracket 2 is threaded to the lens 1, and the other end is threaded to the lens bracket 3. One side of the light-emitting surface of the light source sub-assembly 6 is connected to the lens bracket 3. The drive assembly 5 is provided on the side of the lens bracket 3. The light source sub-assembly 6 includes a heat sink 61 and a lamp plate 62. One side of the heat sink 61 is connected to the lamp plate 62, and a light source 621 is provided on the lamp plate 62. At least two guide structures 611 are symmetrically provided on the heat sink 61. The lens bracket 3 is provided with a sliding groove 31 that matches the guide structure 611. The drive assembly 5 includes a motor 51 and a transmission mechanism 52. The transmission mechanism 52 is connected to the heat sink 61 and is used to drive the heat sink 61 to move up and down along the sliding groove 31 to change the relative position of the light source 621 and the lens 1, thereby achieving near and far field projection adjustment.
[0029] The transmission mechanism 52 is a gear 521 transmission assembly, which includes a gear 521 and a rack structure 522. The gear 521 is located at the output end of the motor 51, and the rack structure 522 is fixed on the radiator 61. The gear 521 meshes with the rack structure 522.
[0030] The rack structure 522 is integrally formed with the radiator 61.
[0031] like Figure 6 As shown, the initial imaging position is set to region A. When the gear 521 rotates clockwise, it causes the heat sink 61 to move downward, the light source 621 to move downward, and the projection imaging position moves upward to region B. When the gear 521 rotates counterclockwise, it causes the heat sink 61 to move upward, the light source 621 to move upward, and the projection imaging position moves downward to region C.
[0032] The guide structure 611 is a columnar protrusion, the slide groove 31 is a straight or arc-shaped groove, and the transmission mechanism 52 is a lead screw or slide rail, which drives the radiator 61 to move up and down through linear motion.
[0033] The guide structure 611 and the slide groove 31 are arranged symmetrically in at least four sets, and the length of the slide groove 31 is greater than the travel of the guide structure 611, so that the connection is stable and not easy to shake when adjusting up and down.
[0034] The vertical movement range of the light source 621 is -8mm to +8mm, and the movement range is controlled by the length of the slide 31 or the stroke of the motor 51.
[0035] Moving the light source upward by 8mm results in a downward shift of the image by 14.7°; moving the light source downward by 8mm results in an upward shift of the image by 14.3°, thus meeting the projection requirements of the vehicle headlights from the near field to the far field.
[0036] A locking element 612 is provided between the guide structure 611 and the slide groove 31. The locking element 612 is threadedly connected to the guide structure 611 to prevent the radiator 61 from disengaging from the slide groove 31, prevent locking, and allow fine adjustment.
[0037] The lens bracket 3 is equipped with a control board 4, which is electrically connected to the drive assembly 5. The control board 4 controls the forward and reverse rotation and the movement accuracy of the drive assembly 5 to realize the up and down movement of the light source assembly 6 relative to the lens 1.
[0038] The light source sub-assembly 6 also includes a fan 63 and a fan bracket 64. The fan bracket 64 is located on the side of the heat sink 61 away from the lamp panel 62, and the fan 63 is connected to the bottom of the fan bracket 64.
[0039] The adjustment accuracy of the drive component 5 is 0.5mm, and the fine adjustment of the projection imaging position is achieved through closed-loop feedback control.
[0040] The beneficial effects of this utility model are as follows: This utility model proposes an HD module that can realize near-field and far-field projection adjustment, including a lens 1, a dimming bracket 2, a lens bracket 3, a drive assembly 5, and a light source sub-assembly 6. One end of the dimming bracket 2 is connected to the lens 1 by a thread, and the other end is connected to the lens bracket 3 by a thread. One side of the light-emitting surface of the light source sub-assembly 6 is connected to the lens bracket 3. The drive assembly 5 is provided on the side of the lens bracket 3. The light source sub-assembly 6 includes a heat sink 61 and a lamp plate 62. One side of the heat sink 61 is connected to the lamp plate 62, and a light source 621 is provided on the lamp plate 62. At least two guide structures 611 are symmetrically provided on the heat sink 61. The lens bracket 3 is provided with a sliding groove 31 that matches the guide structure 611. The drive assembly 5 includes a motor 51 and a transmission mechanism 52. The transmission mechanism 52 is connected to the heat sink 61 and is used to drive the heat sink 61 to move up and down along the sliding groove 31 to change the relative position of the light source 621 and the lens 1, thereby realizing near-field and far-field projection adjustment.
[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An HD module capable of adjusting near and far field projection, comprising a lens (1), a dimming bracket (2), a lens bracket (3), a drive assembly (5), and a light source sub-assembly (6), wherein one end of the dimming bracket (2) is connected to the lens (1) by a thread, and the other end is connected to the lens bracket (3) by a thread, one side of the light-emitting surface of the light source sub-assembly (6) is connected to the lens bracket (3), and the drive assembly (5) is provided on the side of the lens bracket (3), characterized in that: The light source sub-assembly (6) includes a heat sink (61) and a lamp plate (62). The lamp plate (62) is connected to one side of the heat sink (61). The light source (621) is provided on the lamp plate (62). At least two guide structures (611) are symmetrically provided on the heat sink (61). The lens bracket (3) is provided with a slide groove (31) that matches the guide structure (611). The drive assembly (5) includes a motor (51) and a transmission mechanism (52). The transmission mechanism (52) is connected to the heat sink (61) and is used to drive the heat sink (61) to move up and down along the slide groove (31) to change the relative position of the light source (621) and the lens (1) to achieve near and far field projection adjustment.
2. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The transmission mechanism (52) is a gear transmission assembly, which includes a gear (521) and a rack structure (522). The gear (521) is located at the output end of the motor (51), and the rack structure (522) is fixed on the radiator (61). The gear (521) meshes with the rack structure (522).
3. The HD module capable of adjusting near and far field projection as described in claim 2, characterized in that: When the gear (521) rotates clockwise, it causes the radiator (61) to move downward, the light source (621) to move downward, and the projection imaging position to move upward; when the gear (521) rotates counterclockwise, it causes the radiator (61) to move upward, the light source (621) to move upward, and the projection imaging position to move downward.
4. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The guide structure (611) and the slide (31) are arranged symmetrically in at least four sets, and the length of the slide (31) is greater than the travel of the guide structure (611), so that the connection is stable and not easily shaken when adjusting up and down.
5. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The vertical movement range of the light source (621) is -8mm to +8mm, and the movement range is controlled by the length of the slide (31) or the stroke of the motor (51).
6. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: Moving the light source upward by 8mm results in a downward shift of the image by 14.7°; moving the light source downward by 8mm results in an upward shift of the image by 14.3°, thus meeting the projection requirements of the vehicle headlights from the near field to the far field.
7. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: A locking element (612) is provided between the guide structure (611) and the slide (31). The locking element (612) is threadedly connected to the guide structure (611) to prevent the radiator (61) from disengaging from the slide (31), prevent locking, and allow fine adjustment.
8. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The lens bracket (3) is provided with a control board (4), which is electrically connected to the drive assembly (5). The light source sub-assembly (6) moves up and down relative to the lens (1) by controlling the forward and reverse rotation and the movement accuracy of the drive assembly (5).
9. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The light source sub-assembly (6) also includes a fan (63) and a fan bracket (64). The fan bracket (64) is located on the side of the heat sink (61) away from the lamp plate (62). The fan (63) is connected to the bottom of the fan bracket (64).
10. The HD module capable of adjusting near and far field projection as described in claim 1, characterized in that: The adjustment accuracy of the drive component (5) is 0.5 mm, and the fine adjustment of the projection imaging position is achieved through closed-loop feedback control.