A lens module structure for automotive lights and automotive lights

Abstract

This utility model belongs to the field of automotive lighting technology, specifically relating to a lens module structure for automotive lights and an automotive light. The lens module structure includes a lens sub-assembly and a heat sink sub-assembly. The heat sink sub-assembly includes a heat sink, a light-emitting component, an inner lamp cover, and a cutoff line reflector. The heat sink is mounted on the rear end of the lens bracket, and the light-emitting component is mounted on the heat sink. The inner lamp cover and the cutoff line reflector are both located on the light-emitting component. U-shaped slots are formed at both ends of the inner lamp cover, and snap-fit ​​fins are formed at both ends of the cutoff line reflector. Each snap-fit ​​fin is located within a U-shaped slot. The inner lamp cover and the cutoff line reflector are connected to the heat sink. This utility model achieves integration of the inner lamp cover and the cutoff line reflector through the snap-fit ​​structure formed by the U-shaped slots and snap-fit ​​fins, resulting in fewer parts, simpler assembly, and guaranteed stable and consistent product performance. Direct positioning of core optical components avoids deviation, making the cutoff lines for both high and low beams more precise and clear.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a lens module structure for automotive lights and an automotive light. Background Technology

[0002] With the development of the automotive industry, lighting designs have become increasingly innovative, with the core light-emitting component being the lens lamp module. Current lighting systems are generally divided into high beam and low beam systems. Existing low beam systems all have a low beam cutoff line, ensuring the safety of the driver while preventing glare for other road users in the illuminated area below the cutoff line.

[0003] For example, Chinese patent CN217273896U discloses an ellipsoidal headlight module with softened dual-light gradient. A low-beam cutoff line is formed by the cooperation of a second inner lampshade and a low-beam baffle, with the baffle being thermally riveted to the second inner lampshade. Existing module solutions typically achieve the cutoff line by designing a baffle sub-assembly and a light-shielding lamp assembly, which is not only costly but also involves complex assembly steps and makes it difficult to control product performance consistency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the technical problems of complex structure and difficulty in controlling product performance consistency in the prior art, this utility model provides a lens module structure for vehicle lights and a vehicle light, which has a simple structure and stable performance.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a lens module structure for vehicle lights and a vehicle light, wherein, it includes: The lens assembly includes a convex lens and a lens holder, the convex lens being snapped onto the front end of the lens holder, and a cavity being formed inside the lens holder; The heat sink assembly includes a heat sink, a light-emitting component, an inner lampshade, and a cutoff line reflector. The heat sink is installed at the rear end of the lens bracket. The light-emitting component, the inner lampshade, and the cutoff line reflector are all located within the cavity. The light-emitting component is mounted on the heat sink. The inner lampshade and the cutoff line reflector are both located on the side of the light-emitting component facing the front end of the lens bracket. U-shaped slots are formed at both ends of the inner lampshade, and the U-shaped slots are recessed towards the front end of the lens bracket. Snap-fit ​​fins are formed at both ends of the cutoff line reflector, and each snap-fit ​​fin protrudes outward from the outer edge of the cutoff line reflector. Each snap-fit ​​fin is located within a U-shaped slot. The inner lampshade and the cutoff line reflector are connected to the heat sink.

[0006] Furthermore, the light-emitting component includes a PCB board and an LED. The PCB board is mounted on the heat sink, the LED is mounted on the PCB board, the inner lamp cover is disposed outside the LED, and the cut-off line reflector is located below the LED.

[0007] Furthermore, the inner lamp cover includes a concentrator structure and two first fixed flanges. The concentrator structure is disposed outside the LED. Each end of the concentrator structure is connected to a first fixed flange. A U-shaped slot is formed on the first fixed flange. The first fixed flange is connected to the heat sink.

[0008] Furthermore, the first fixed flange has first mounting holes at both ends for installing the first screw. The first screw passes through the first mounting holes and the PCB board in sequence to lock the first fixed flange onto the heat sink.

[0009] Furthermore, the surface of the cutoff line reflector baffle facing the LED is provided with an aluminum plating layer.

[0010] Furthermore, the cutoff line reflective baffle has a rectangular plate structure, which is formed by stretching a rectangle toward the front end of the lens bracket. The two sides of the rear end of the rectangular plate structure are respectively connected to the snap-fit ​​fins. The rear end face of the rectangular plate structure abuts against the light-emitting component. The front end of the rectangular plate structure is provided with a notch, and the edge shape of the notch forms the shape of the cutoff line.

[0011] Furthermore, the depth L1 of the U-shaped slot is 10mm to 15mm, and the width L2 of the U-shaped slot is 2mm to 4mm. The specific technical effect is that this range of design ensures both optical performance and assembly mechanical properties.

[0012] Furthermore, the lower end of the cutoff line reflective baffle is provided with a second fixed flange, and the second fixed flange is provided with a second mounting hole for installing a second screw. The second fixed flange is locked to the heat sink by the second screw.

[0013] Furthermore, the heat sink is provided with a positioning post, which extends toward the front end of the lens bracket. The inner lamp cover is provided with a third fixing flange. The third fixing flange and the light-emitting component are both provided with positioning holes for the positioning post to pass through. The third fixing flange is provided with a third mounting hole for installing a third screw. The third screw passes through the third fixing flange and the light-emitting component in sequence to lock the third fixing flange onto the heat sink.

[0014] A vehicle lamp, comprising a lens module structure for a vehicle lamp as described in any of the preceding claims and the vehicle lamp itself.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves an integrated design by using a U-shaped slot in the inner lampshade and a snap-fit ​​mechanism between the cut-off line reflector baffle and the fins. During assembly, this integrated component is directly locked to the heat sink along with the light-emitting component, and then locked to the lens sub-assembly to complete the assembly. This reduces the number of parts, simplifies assembly, and improves production efficiency. Furthermore, direct positioning via core optical components avoids indirect positioning deviations, ensuring the accuracy and clarity of the near and dark cut-off lines. It also enhances vibration resistance, reduces the risk of component loosening, and guarantees product consistency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is an exploded structural diagram of a lens module structure for automotive lights according to this utility model; Figure 2 This is a schematic diagram of the structure of the inner lampshade of this utility model; Figure 3 This is a schematic diagram of the structure of the radiator sub-assembly of this utility model; Figure 4 This is a structural schematic diagram of the radiator sub-assembly of this utility model from another perspective; Figure 5 This is a top view of the installation of a lens module structure for a vehicle headlight according to this utility model; Figure 6 for Figure 5 Sectional view at point AA.

[0018] In the diagram: 1. Convex lens; 101. Inner locking pin; 2. Lens bracket; 201. Cavity; 3. Heat sink; 301. Positioning post; 4. Light-emitting component; 401. PCB board; 402. LED; 5. Inner lampshade; 501. U-shaped slot; 502. Concentrator structure; 503. First fixing flange; 504. First screw; 505. First mounting hole; 6. Cut-off line reflector baffle; 601. Notch; 602. Second fixing flange; 603. Second screw; 604. Second mounting hole; 7. Snap-fit ​​fin; 8. Third fixing flange; 801. Third screw; 802. Third mounting hole; 9. Positioning hole. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 6 The diagram shows a preferred embodiment of the present invention. This embodiment provides a lens module structure for a vehicle headlight, comprising: a lens sub-assembly and a heat sink sub-assembly. The lens sub-assembly includes a convex lens 1 and a lens bracket 2. The convex lens 1 is snapped onto the front end of the lens bracket 2, and a cavity 201 is formed within the lens bracket 2. The heat sink sub-assembly includes a heat sink 3, a light-emitting component 4, an inner lamp cover 5, and a cutoff line reflector 6. The heat sink 3 is installed at the rear end of the lens bracket 2. The light-emitting component 4, the inner lamp cover 5, and the cutoff line reflector 6 are all located within the cavity 201. The component 4 is installed on the heat sink 3. The inner lamp cover 5 and the cut-off line reflector 6 are both located on the side of the light-emitting component 4 facing the front end of the lens bracket 2. The two ends of the inner lamp cover 5 are respectively formed with U-shaped slots 501. The U-shaped slots 501 are recessed in the direction facing the front end of the lens bracket 2. The two ends of the cut-off line reflector 6 are respectively formed with snap-fit ​​fins 7. Each snap-fit ​​fin 7 is protruding outward from the outer edge of the cut-off line reflector 6. Each snap-fit ​​fin 7 is located in a U-shaped slot 501. The inner lamp cover 5 and the cut-off line reflector 6 are connected to the heat sink 3.

[0023] Specifically, the rear end of the convex lens 1 is provided with an inner locking pin 101, and the convex lens 1 is locked to the front end of the lens bracket 2 through the inner locking pin 101.

[0024] In a preferred embodiment, the light-emitting component 4 includes a PCB board 401 and a plurality of LEDs 402. The PCB board 401 is mounted on the heat sink 3, and the plurality of LEDs 402 are arranged sequentially on the PCB board 401 in a horizontal direction. The inner lamp cover 5 covers the outside of the LEDs 402.

[0025] Specifically, the inner lamp cover 5 includes a concentrator structure 502 and two first fixed flanges 503. The concentrator structure 502 covers the outside of the LED 402. Each end of the concentrator structure 502 is connected to a first fixed flange 503. A U-shaped slot 501 is opened on the first fixed flange 503. The first fixed flange 503 is connected to the heat sink 3.

[0026] More specifically, the cutoff line reflector 6 has a rectangular plate-like structure, which is formed by stretching a rectangle towards the front end of the lens bracket 2. A snap-fit ​​fin 7 is connected to each side of the rear end of the rectangular plate-like structure. The cutoff line reflector 6 is located below the LED 402, and the rear end face of the rectangular plate-like structure abuts against the PCB board 401. The front end of the rectangular plate-like structure has a notch 601, the edge shape of which forms the shape of the cutoff line. It should be noted that when light hits the cutoff line reflector 6, the shape of the edge of the notch 601 forms a near-beam cutoff line.

[0027] More specifically, the surface of the cutoff line reflector 6 facing LED402 is coated with aluminum, which achieves the cutoff line effect while efficiently utilizing reflected light and improving the overall optical efficiency of the module.

[0028] Therefore, see Figure 6 As shown, the light emitted by LED402 passes through the condenser structure 502 and hits the surface of the cutoff line reflector 6 facing LED402. After being reflected by the surface, it propagates to the convex lens 1 and finally exits after being refracted by the convex lens 1.

[0029] In a preferred embodiment, the first fixed flange 503 has first mounting holes 505 at both ends for mounting the first screw 504. The first screw 504 passes through the first mounting holes 505 and the PCB board 401 in sequence to lock the first fixed flange 503 onto the heat sink 3.

[0030] In a preferred embodiment, the depth L1 of the U-shaped slot 501 is 10mm to 15mm, and the width L2 of the U-shaped slot 501 is 2mm to 4mm. This size range allows for sufficient contact length between the snap-fit ​​fin 7 and the U-shaped slot 501, preventing loosening or misalignment due to excessive size, ensuring reliable integrated connection, minimizing relative displacement after assembly, and further improving vibration resistance. Furthermore, if the size is too large, it will excessively occupy the edge area of ​​the cutoff line reflector 6, reducing its effective optical area for reflecting near-light rays and forming the cutoff line, thereby affecting the optical performance of the entire lens module structure.

[0031] In a preferred embodiment, the lower end of the cutoff line reflector 6 is provided with a second fixing flange 602. The second fixing flange 602 is provided with a second mounting hole 604 for installing a second screw 603. The second fixing flange 602 is locked to the heat sink 3 by the second screw 603, thereby assisting the cutoff line reflector 6 in positioning.

[0032] In a preferred embodiment, a positioning post 301 is provided on the heat sink 3, extending toward the front end of the lens bracket 2. A third fixing flange 8 is provided on the inner lamp cover 5. Positioning holes 9 for the positioning post 301 to pass through are provided on both the third fixing flange 8 and the light-emitting component 4. A third mounting hole 802 for installing a third screw 801 is provided on the third fixing flange 8. After the third screw 801 passes through the third fixing flange 8 and the light-emitting component 4 in sequence, the third fixing flange 8 is locked onto the heat sink 3. This further assists in the installation and positioning of the main optical components (light-emitting component 4, inner lamp cover 5 and cutoff line reflector 6).

[0033] A vehicle headlight, comprising a lens module structure as described in any of the above.

[0034] The specific assembly process of this utility model is as follows: The convex lens 1 is snapped onto the front end of the lens holder 2 to form a lens assembly; The snap-fit ​​fins 7 of the cut-off line reflector baffle 6 are snapped into the U-shaped slot 501 of the inner lamp cover 5. After snapping into place, it is placed on the heat sink 3 on top of the light-emitting component 4. The positioning post 301 passes through the light-emitting component 4 and the third fixing flange 8 in sequence. Then, it is locked and fixed to the heat sink 3 by the first screw 504, the second screw 603 and the third screw 801 to form the heat sink 3 sub-assembly. By attaching the radiator 3 sub-assembly to the rear end of the lens bracket 2, the assembly of the entire lens module structure is completed.

[0035] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves an integrated design by using the U-shaped slot 501 of the inner lampshade 5 and the snap-fit ​​fins 7 of the cutoff line reflector 6 to form a snap-fit ​​fit. This design not only reduces the number of parts but also facilitates assembly compared to traditional riveting processes. During assembly, the snap-fit ​​inner lampshade 5 and the cutoff line reflector 6, together with the light-emitting component 4, are directly locked to the heat sink 3 and then to the lens sub-assembly, thus completing the assembly of the entire lens module structure. This assembly structure reduces the number of parts, lowers assembly difficulty, improves production efficiency, enhances vibration resistance, reduces the risk of component loosening, and effectively ensures product performance consistency. At the same time, the inner lampshade 5, the cutoff line reflector 6, and the light-emitting component 4, as core optical components, are directly connected through positioning, avoiding the deviation caused by indirect positioning of multiple components in traditional solutions, thereby ensuring the accuracy and clarity of the near-light and dark cutoff lines.

[0036] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A lens module structure for automotive lights, characterized in that, include: The lens assembly includes a convex lens (1) and a lens support (2). The convex lens (1) is snapped onto the front end of the lens support (2). A cavity (201) is formed inside the lens support (2). The heat sink (3) sub-assembly includes a heat sink (3), a light-emitting component (4), an inner lampshade (5), and a cutoff line reflector (6). The heat sink (3) is installed at the rear end of the lens bracket (2). The light-emitting component (4), the inner lampshade (5), and the cutoff line reflector (6) are all located in the cavity (201). The light-emitting component (4) is mounted on the heat sink (3). The inner lampshade (5) and the cutoff line reflector (6) are located on the light-emitting component (4) facing the lens bracket (201). On one side of the front end, the inner lamp cover (5) has U-shaped slots (501) formed at both ends. The U-shaped slots (501) are recessed towards the front end of the lens bracket (2). The cut-off line reflector (6) has snap-fit ​​fins (7) formed at both ends. Each snap-fit ​​fin (7) protrudes outward from the outer edge of the cut-off line reflector (6). Each snap-fit ​​fin (7) is located in a U-shaped slot (501). The inner lamp cover (5) and the cut-off line reflector (6) are connected to the heat sink (3).

2. The lens module structure for a vehicle lamp according to claim 1, wherein The light-emitting component (4) includes a PCB board (401) and an LED (402). The PCB board (401) is mounted on the heat sink (3), the LED (402) is mounted on the PCB board (401), the inner lamp cover (5) covers the outside of the LED (402), and the cut-off line reflector (6) is located below the LED (402).

3. The lens module structure for a vehicle lamp according to claim 2, wherein The inner lamp cover (5) includes a condenser structure (502) and two first fixed flanges (503). The condenser structure (502) covers the outside of the LED (402). Each end of the condenser structure (502) is connected to a first fixed flange (503). A U-shaped slot (501) is opened on the first fixed flange (503). The first fixed flange (503) is connected to the heat sink (3).

4. The lens module structure for a vehicle lamp according to claim 3, wherein The first fixed flange (503) has first mounting holes (505) at both ends for mounting the first screw (504). The first screw (504) passes through the first mounting hole (505) and the PCB board (401) in sequence to lock the first fixed flange (503) onto the heat sink (3).

5. The lens module structure for a vehicle lamp according to claim 2, wherein The cutoff line reflective baffle (6) has an aluminum plating layer on its surface facing the LED (402).

6. The lens module structure for automotive lights as described in claim 1, characterized in that, The cutoff line reflective baffle (6) has a rectangular plate structure. The rectangular plate structure is formed by stretching a rectangle toward the front end of the lens bracket (2). The two sides of the rear end of the rectangular plate structure are respectively connected to a snap-fit ​​fin (7). The rear end face of the rectangular plate structure abuts against the light-emitting component (4). The front end of the rectangular plate structure is provided with a notch (601). The edge shape of the notch (601) forms the shape of the cutoff line.

7. The lens module structure for a vehicle lamp according to claim 1, wherein The depth L1 of the U-shaped slot (501) is 10mm to 15mm, and the width L2 of the U-shaped slot (501) is 2mm to 4mm.

8. The lens module structure for a vehicle lamp according to claim 1, wherein The lower end of the cutoff line reflective baffle (6) is provided with a second fixed flange (602), and the second fixed flange (602) is provided with a second mounting hole (604) for installing a second screw (603). The second fixed flange (602) is locked to the heat sink (3) by the second screw (603).

9. The lens module structure for a vehicle lamp according to claim 1, wherein The heat sink (3) is provided with a positioning post (301) extending toward the front end of the lens bracket (2). The inner lamp cover (5) is provided with a third fixing flange (8). The third fixing flange (8) and the light-emitting component (4) are both provided with positioning holes (9) for the positioning post (301) to pass through. The third fixing flange (8) is provided with a third mounting hole (802) for installing a third screw (801). The third screw (801) passes through the third fixing flange (8) and the light-emitting component (4) in sequence and then locks the third fixing flange (8) onto the heat sink (3).

10. A vehicle lamp characterized by Includes a lens module structure for automotive lighting and an automotive lighting as described in any one of claims 1 to 9.

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