A flexible silicone wall washer light strip with biased light output and lateral bending capability

Abstract

This utility model discloses a flexible silicone wall washer light strip with biased light output and lateral bending. It includes a silicone light strip with a left side portion, a right side portion, a bottom portion connecting the left and right sides, and a connecting portion connecting the top of the left side portion and the bottom. An opening is formed between the top of the left and right sides, and a cavity that gradually widens from the bottom towards the opening is formed between the connecting portion and the right side portion; a lens body; and a light source assembly. This utility model provides a flexible silicone wall washer light strip with biased light output and lateral bending. The flexible design of the silicone light strip allows it to bend laterally, adapting to different installation surfaces. The gradually widening cavity structure helps light to reflect and diffuse internally, improving light uniformity. The inclined surface design ensures that the light-emitting surface of the light source assembly faces directly towards the lens body, ensuring efficient light utilization. The protruding design of the lens body effectively focuses and adjusts the light path, achieving a biased light output effect.

Description

Technical Field

[0001] This utility model relates to the field of wall washer light technology, and in particular to a flexible silicone wall washer light strip with biased light output and lateral bending capability. Background Technology

[0002] Currently, wall washer light strips on the market mainly employ the following technical solutions:

[0003] Rigid offset wall washer light: It uses an aluminum alloy shell and achieves offset light output through a rotating bracket. It has good heat dissipation but is completely rigid and has no bending ability. It cannot be adapted to curved or corner shapes, and its large size makes it unsuitable for grooved or recessed installation areas.

[0004] Standard silicone LED strips: Made by direct molding of FPC into silicone, they have IP67 protection and unidirectional bending capability, and the floodlight angle can reach 120°, but they cannot achieve the effect of offset light output. Utility Model Content

[0005] To address the aforementioned issues, this technical solution provides a flexible silicone wall washer light strip with biased light output and lateral bending capability.

[0006] To achieve the above objectives, the technical solution is as follows:

[0007] A flexible silicone wall washer light strip with biased light output and lateral bending capability, including...

[0008] A silicone light strip includes a left side portion, a right side portion, a bottom portion connecting the left side portion and the right side portion, and a connecting portion connecting the top of the left side portion and the bottom portion. An opening is formed between the top of the left side portion and the top of the right side portion, and a cavity that gradually widens from the bottom portion towards the opening is formed between the connecting portion and the right side portion.

[0009] The lens body fills the opening and protrudes towards the cavity;

[0010] The inner wall of the right side portion is provided with an inclined surface that gradually indents towards the bottom.

[0011] The light source assembly includes an FPC lamp board disposed on the inclined surface, and side-emitting lamp beads disposed on the FPC lamp board with their light-emitting surfaces facing the lens body.

[0012] As described above, in a flexible silicone wall washer light strip with biased light output and lateral bending, the angle α between the inclined surface and the direction perpendicular to the opening is 11°±2°.

[0013] As described above, a flexible silicone wall washer light strip with biased light output and lateral bending has a lens body comprising a convex lens portion that protrudes in the direction of the cavity and is arc-shaped. The convex lens portion is used to focus light so that the light output angle b transmitted through the lens body is 30°±5°.

[0014] As described above, a flexible silicone wall washer light strip with biased light output and lateral bending includes an opening integrally connected to the convex lens portion. The right side of the opening gradually widens from the connection between the convex lens portion and the inner wall of the right side portion towards the opening direction; the left side of the opening gradually widens from the connection between the convex lens portion and the connecting portion towards the opening direction, so that when the silicone light strip bends to the left or right, the offset range of the light output angle b is -1°≤b≤1°.

[0015] The flexible silicone wall washer light strip with biased light output and lateral bending as described above further includes a silicone part for wrapping the light source assembly, and the silicone part is provided with an angled slot for embedding the light source assembly.

[0016] As described above, a flexible silicone wall washer light strip with biased light output and lateral bending has a limiting cavity recessed on the connecting part, and the limiting cavity and the cavity together accommodate the silicone part.

[0017] As described above, a flexible silicone wall washer light strip with biased light output and lateral bending has a through groove on its right side that penetrates its outer and inner side walls, and the silicone part extends to fill the through groove.

[0018] As described above, the flexible silicone wall washer light strip with biased light output and lateral bending further includes a heat sink for preventing breakage, disposed between the FPC light panel and the inclined surface.

[0019] As described above, in a flexible silicone wall washer light strip with biased light output and lateral bending, the thickness of the anti-breakage heat sink is 0.2mm, and the thickness of the FPC light board is 0.3mm.

[0020] As described above, a flexible silicone wall washer light strip with biased light output and lateral bending has a cavity with a triangular cross-section between the left side and the connecting part.

[0021] The beneficial effects of this application are:

[0022] This invention provides a flexible silicone wall washer light strip with biased light output and lateral bending. The flexible design of the silicone light strip allows it to bend laterally, adapting to different installation surfaces. The gradually widening cavity structure helps light to be reflected and diffuse internally, improving light uniformity. The inclined surface setting ensures that the light-emitting surface of the light source component faces the lens body directly, ensuring efficient light utilization and reducing light loss. The protruding design of the lens body can effectively focus light and adjust the light path to achieve the biased light output effect.

[0023] Significantly enhanced multi-dimensional bending capability: Thanks to its unique light source component layout, the silicone light strip can be bent laterally in multiple directions, adapting to various complex installation surfaces such as cylinders, arches, and corners. This solves the pain point of existing products being unable to laterally adapt to irregularly shaped scenarios.

[0024] Stable and reliable optical performance: The 30° offset light emission angle, combined with 3014 high-density side-emitting LED beads, ensures uniform and clear light pattern, excellent wall washing effect, and no light spot shift during bending.

[0025] Compatible with small size and multiple functions: Within a compact 16x18mm size, it integrates lateral bending, offset light emission, and IP67 protection. It can be embedded in narrow spaces such as building gaps and decorative line grooves, while also adapting to curved and corner installations and directional wall washing needs, filling a gap in the market for similar products. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0027] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0028] Figure 2 This is a diagram showing the test results of the beam angle of this utility model. Detailed Implementation

[0029] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] A flexible silicone wall washer light strip with biased light output and lateral bending capability, including...

[0031] A silicone LED strip 1 includes a left side portion 11, a right side portion 12, a bottom portion 13 connecting the left side portion 11 and the right side portion 12, and a connecting portion 14 connecting the top of the left side portion 11 and the bottom portion 13. An opening 15 is formed between the top of the left side portion 11 and the top of the right side portion 12, and a cavity 16 is formed between the connecting portion 14 and the right side portion 12, which gradually widens from the bottom portion 13 toward the opening 15.

[0032] The lens body 2 fills the opening 15 and protrudes toward the cavity 16;

[0033] The inner wall of the right side portion 12 is provided with an inclined surface 17 that gradually indents towards the bottom 13;

[0034] The light source assembly 3 includes an FPC lamp board 31 disposed on the inclined surface 17, and side-emitting lamp beads 32 disposed on the FPC lamp board 31 with their light-emitting surfaces facing the lens body 2.

[0035] This invention provides a flexible silicone wall washer light strip with biased light output and lateral bending. The flexible design of the silicone light strip allows it to bend laterally, adapting to different installation surfaces. The gradually widening cavity structure helps light to be reflected and diffuse internally, improving light uniformity. The inclined surface setting ensures that the light-emitting surface of the light source component faces the lens body directly, ensuring efficient light utilization and reducing light loss. The protruding design of the lens body can effectively focus light and adjust the light path to achieve the biased light output effect.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the angle α between the inclined surface 17 and the direction perpendicular to the opening 15 is 11°±2°. This optimizes the path of light incident on the lens body, allowing the light to enter the lens more concentratedly, reducing scattering and light loss, thereby improving light extraction efficiency and illumination brightness.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, the lens body 2 includes a convex lens portion 21 that protrudes in the direction of the cavity 16 and is arc-shaped. The convex lens portion 21 is used to focus light so that the light emission angle b transmitted through the lens body 2 is 30°±5°. The arc-shaped design of the convex lens portion serves to focus the light, concentrating the light projection and controlling the light emission angle within the range of 30°±5°, providing a uniform wall-washing lighting effect, avoiding light spots or dark areas, and is suitable for wall lighting applications. After testing, as... Figure 2 As shown, the average beam angle in this embodiment is 29.3°.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the lens body 2 also includes an opening 22 integrally connected to the convex lens portion 21. The right side of the opening 22 gradually widens from the connection point between the convex lens portion 21 and the inner wall of the right side portion 12 towards the opening 15; the left side of the opening 22 gradually widens from the connection point between the convex lens portion 21 and the connecting portion 14 towards the opening 15, so that when the silicone light strip 1 bends to the left or right, the offset range of the light emission angle b is -1°≤b≤1°. The gradually widening opening design compensates for changes in the light path when the light strip bends, minimizing the offset of the light emission angle, maintaining a stable lighting direction, ensuring consistent wall washing effect, and avoiding light deviation caused by bending.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a silicone portion 4 for enclosing the light source assembly 3, the silicone portion 4 having an angled slot 41 for embedding the light source assembly 3. The silicone portion provides additional insulation and protection, preventing moisture and dust intrusion; the angled slot ensures the light source assembly is securely installed, preventing displacement or loosening, and improving the durability and reliability of the light strip.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the connecting portion 14 is recessed with a limiting cavity 141, which, together with the cavity 16, accommodates the silicone portion 4. The limiting cavity and the cavity cooperate to fix the position of the silicone portion, preventing it from moving during use and ensuring that the light source assembly is always aligned with the lens body, thus maintaining stable optical performance.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the right side portion 12 is provided with a through groove 121 penetrating its outer and inner side walls, and the silicone portion 4 extends to fill the through groove 121. The through groove design allows the silicone portion to fill it, enhancing the structural integrity of the light strip, improving heat dissipation performance, and potentially increasing the waterproof rating and extending its service life.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation, the light source assembly 3 also includes a heat sink 33 for preventing breakage, disposed between the FPC lamp board 31 and the inclined surface 17. The heat sink provides mechanical support to prevent the FPC lamp board from breaking when bent, while also enhancing heat dissipation, reducing the operating temperature of the LED beads, and improving the reliability and lifespan of the light source assembly.

[0043] Furthermore, as a preferred embodiment of this solution and not a limitation, the thickness of the anti-breakage heat sink 33 is 0.2 mm, and the thickness of the FPC light board 31 is 0.3 mm. This specific thickness balances flexibility and heat dissipation requirements; the thin design ensures the light strip remains bendable while providing sufficient heat dissipation capacity and structural strength to prevent overheating damage.

[0044] Furthermore, as a preferred embodiment of this solution and not a limitation, a cavity 18 with a triangular cross-section is provided between the left side portion 11 and the connecting portion 14. The triangular cavity increases the flexibility of the light strip, making it easier to bend laterally, while reducing the overall weight and facilitating installation and adaptation to various curved surfaces.

[0045] Furthermore, as a preferred embodiment of this solution and not a limitation, the opening angle c of the opening is 60°±5°. The offset angle d of the left side of the opening relative to the left side of the cavity is 11°, and the offset angle e of the right side of the opening relative to the right side of the cavity is 18°.

[0046] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, the core FPC light board consists of a three-layer composite system: FPC + anti-breakage heat sink + silicone layer. This system disperses bending stress, ensuring structural flexibility and circuit safety. A 0.3mm thick FPC light board with a flexible FPC placed laterally is used, with periodically arranged LED beads along its length. A 0.2mm thick plastic anti-breakage heat sink is attached to the back of the FPC light board. The anti-breakage heat sink is adhered to the silicone layer on the side using a primer, dispersing the stress during lateral bending of the light strip and preventing circuit breakage.

[0047] 11° Angled Lamp Panel Fixing: An 11° angled slot is pre-set in the silicone extrusion mold. The width of the angled slot matches the thickness of the FPC lamp panel, ensuring that the FPC lamp panel is securely attached. The LEDs adopt a side-emitting design, with the emission direction perpendicular to the angled surface of the FPC lamp panel, providing an initial angle basis for offset light emission. A low-viscosity silicone adhesive is applied inside the angled slot. After curing, it firmly bonds the FPC lamp panel to the silicone part, preventing lamp panel displacement during bending.

[0048] Slanted lens body matching: By adjusting the shape and optimizing the structure of the extruded silicone, a slanted convex lens part is designed on the light-emitting surface, which matches the lamp plate at an 11° angle in the vertical direction. Through optical refraction path optimization, the light emitted by the lamp bead is precisely controlled to be offset at 30°, and the relative position of the two remains unchanged when bent, ensuring stable optical parameters.

[0049] Technical effects of this utility model:

[0050] 1. Structural Design Protection: The double-angled design of 11° angled FPC lamp board + angled lens body achieves 30° precise offset light output. Furthermore, the relative positions of the two are fixed by angled slots and adhesive when bent, solving the compatibility problem of bending and offset.

[0051] 2. Integrated innovative protection: Three core functions (lateral bending, 30° offset light output, and IP67 protection) are integrated in a small size of 16×18mm, filling a market gap and suitable for high-end customized lighting scenarios.

[0052] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A flexible silicone wall washer light strip with biased light output and lateral bending capability, characterized in that: The device includes a silicone LED strip (1), which includes a left side (11), a right side (12), a bottom (13) connecting the left side (11) and the right side (12), and a connecting part (14) connecting the top of the left side (11) and the bottom (13). An opening (15) is formed between the top of the left side (11) and the top of the right side (12), and a cavity (16) is formed between the connecting part (14) and the right side (12) that gradually widens from the bottom (13) toward the opening (15). The lens body (2) fills the opening (15) and protrudes toward the cavity (16); The inner wall of the right side part (12) is provided with an inclined surface (17) that gradually indents towards the bottom (13); The light source assembly (3) includes an FPC lamp board (31) disposed on the inclined surface (17) and a side-emitting lamp bead (32) disposed on the FPC lamp board (31) with its light-emitting surface facing the lens body (2).

2. The flexible silicone wall washer light strip with biased light output and lateral bending according to claim 1, characterized in that: The angle α between the inclined surface (17) and the direction perpendicular to the opening (15) is 11°±2°.

3. A flexible silicone wall washer light strip with biased light output and lateral bending as described in claim 1, characterized in that: The lens body (2) includes a convex lens portion (21) that protrudes in the direction of the cavity (16) and is arc-shaped. The convex lens portion (21) is used to focus light so that the light output angle b transmitted through the lens body (2) is 30°±5°.

4. A flexible silicone wall washer light strip with biased light output and lateral bending as described in claim 3, characterized in that: The lens body (2) also includes an opening (22) integrally connected to the convex lens part (21). The right side of the opening (22) gradually expands from the connection between the convex lens part (21) and the inner sidewall of the right side part (12) toward the opening (15); the left side of the opening (22) gradually expands from the connection between the convex lens part (21) and the connecting part (14) toward the opening (15), so that when the silicone light strip (1) bends to the left or to the right, the offset range of the light emission angle b is -1°≤b≤1°.

5. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 1, characterized in that: It also includes a silicone part (4) for wrapping the light source assembly (3), the silicone part (4) having an angled slot (41) for embedding the light source assembly (3).

6. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 5, characterized in that: The connecting part (14) is recessed with a limiting cavity (141), and the limiting cavity (141) and the cavity (16) together accommodate the silicone part (4).

7. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 5, characterized in that: The right side portion (12) is provided with a through groove (121) that penetrates its outer and inner side walls, and the silicone portion (4) extends to fill the through groove (121).

8. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 1, characterized in that: The light source assembly (3) also includes a heat sink (33) for preventing breakage, disposed between the FPC lamp board (31) and the inclined surface (17).

9. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 8, characterized in that: The thickness of the heat sink (33) is 0.2 mm, and the thickness of the FPC lamp board (31) is 0.3 mm.

10. A flexible silicone wall washer light strip with biased light output and lateral bending according to claim 1, characterized in that: A cavity (18) with a triangular cross-section is provided between the left side portion (11) and the connecting portion (14).

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