Silica gel co-extrusion integrated lamp strip

Abstract

A silica gel co-extrusion integrated lamp strip comprises a strip-shaped substrate and a plurality of LED lamp beads arranged on the strip-shaped substrate, and further comprises a silica gel body, the silica gel body comprises a light-transmitting silica gel layer, the silica gel co-extrusion integrated lamp strip is a long-strip-shaped flexible lamp strip, the strip-shaped substrate and the silica gel body are of a co-extrusion integrated forming structure, and the strip-shaped substrate and the silica gel body are arranged on the strip-shaped substrate. The silica gel body surrounds the strip-shaped substrate and the LED lamp beads, the silica gel body is constructed to enable at least one face of the flexible lamp strip to transmit light, and at least the light-transmitting silica gel layer is arranged above the LED lamp beads and / or below the strip-shaped substrate. The silica gel co-extrusion integrated lamp strip has the advantages of being adjustable in emergent light, wide in applicability, waterproof, light in weight and high in bending resistance.

Description

Technical Field

[0001] This utility model relates to the field of LED light strip technology, specifically to a silicone co-extruded integrated light strip. Background Technology

[0002] LED light strips are widely used in home lighting, commercial displays, outdoor landscapes, automotive lighting, and stage performances. With their high brightness, low energy consumption, and long lifespan, they have become an important part of the modern lighting industry. As technology continues to advance and innovate, the application scenarios of LED light strips will continue to expand and enrich, bringing people a better lighting experience.

[0003] Traditional LED light strips use PVC tubing, which has the drawback of a loose fit between the strip and the tubing, making them unsuitable for bathrooms and other locations with high waterproofing requirements. Furthermore, the high hardness of traditional LED strips results in poor bending resistance, making them prone to breakage and deformation in practical applications. They are also difficult to fit onto complex curved surfaces, such as arched ceilings, limiting their usability. Moreover, traditional LED strips typically emit light from only one side, failing to meet the needs of diverse scenarios. Therefore, there is an urgent need for a silicone co-extruded integrated light strip to solve these problems. Utility Model Content

[0004] In view of this, a silicone co-extruded integrated light strip with adjustable light output, wide applicability, waterproof and lightweight, and strong bending resistance is provided.

[0005] A silicone co-extruded integrated light strip includes a strip substrate and a plurality of LED beads disposed on the strip substrate, and a silicone body including a light-transmitting silicone layer. The silicone co-extruded integrated light strip is a long, flexible light strip. The strip substrate and the silicone body are co-extruded integrally formed. The silicone body surrounds the strip substrate and the LED beads. The silicone body is configured to allow light to pass through at least one side of the flexible light strip. The light-transmitting silicone layer is disposed at least above the LED beads and / or below the strip substrate.

[0006] Furthermore, the co-extruded integral molding structure is a hollow extrusion structure or a solid extrusion structure. In the hollow extrusion structure, there is a gap between the silicone body and the light-emitting surface of the flexible LED strip, and the gap is a continuous cavity structure. In the solid extrusion structure, the silicone body completely encapsulates the strip substrate and the LED beads, thereby forming a seamless sealed structure between the silicone body and the strip substrate and the LED beads.

[0007] Furthermore, the silicone body also includes a light-shielding silicone layer, and the light-shielding silicone layer and / or light-transmitting silicone layer are disposed on the left and right sides of the strip substrate and the LED lamp beads.

[0008] Furthermore, the light-transmitting silicone layer and the light-shielding silicone layer are co-extruded integrally formed structures. The light-shielding silicone layer covers part or all of the outer periphery of the side of the light-transmitting silicone layer. The top of the light-transmitting silicone layer is higher than or horizontal to the top of the light-shielding silicone layer, and the bottom of the light-shielding silicone layer is horizontal to the bottom of the light-transmitting silicone layer.

[0009] Furthermore, the light-transmitting silicone layer is a milky white, semi-transparent silicone body, and the light-shielding silicone layer is a white or colorless, opaque silicone body.

[0010] Furthermore, the light-transmitting silicone layer is a silicone body with a light transmittance greater than 90%. Even further, the light-transmitting silicone layer has an inverted trapezoidal structure, and the light-shielding silicone layer has an inverted trapezoidal groove with its opening facing upwards; the inclined outer surface of the light-transmitting silicone layer is tightly fitted to the inclined inner surface of the inverted trapezoidal groove.

[0011] Furthermore, the strip substrate is a flexible FPC printed circuit board, and the LED beads are disposed on the upper surface of the strip substrate and are laid at equal intervals along the axial direction of the strip substrate.

[0012] Furthermore, the minimum bending diameter of the flexible light strip is 30mm.

[0013] Furthermore, the upper surface of the light-transmitting silicone layer has a planar structure or at least a partially planar light-emitting surface; the side surface of the light-shielding silicone layer is a flat surface, making the entire silicone body cross-section rectangular or chamfered rectangular; the light-transmitting silicone layer includes an upper portion covering the LED beads and a lower portion disposed on the bottom surface of the strip substrate, and the light-shielding silicone layer surrounds the upper and lower portions of the light-transmitting silicone layer; the flexible light strip also includes wires for connecting to an external power source or to another flexible light strip, the wires extending from one or both ends of the strip substrate.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] First, this silicone co-extruded integrated light strip adopts a co-extruded integrated molding structure. The silicone body surrounds the strip substrate and LED beads and is tightly bonded to form a seamless sealing structure on the outer perimeter. This can effectively prevent external moisture from entering and achieve IP67 waterproof protection. This allows the light strip to maintain a stable working state even when installed in environments such as underwater landscapes or bathrooms. Moreover, compared with traditional light strips, this light strip is covered with silicone, which has a lower density than PVC, making the light strip lighter and more conducive to transportation and use.

[0016] Secondly, compared with traditional light strips, this silicone co-extruded integrated light strip has better bending resistance and toughness. During transportation or installation, it is not easy for the internal flexible FPC printed circuit board to break due to bending or squeezing. Moreover, at least one light-transmitting silicone layer is provided under the strip substrate, making the light strip flexible and equivalent to having self-adhesive backing. It can be installed on curved surfaces such as arched ceilings, cylinders, or other irregular structures without the need for additional fixing brackets.

[0017] Third, this type of silicone co-extruded integrated light strip has a light-transmitting silicone layer and / or a light-shielding silicone layer on the left and right sides of the strip substrate and LED beads. When only the light-transmitting silicone layer is set on the left and right sides, the light strip can achieve light emission from at least three sides, including the top and the sides. When only the light-shielding silicone layer is set on the left and right sides, light emission can be achieved from the top side. When both the light-transmitting and light-shielding silicone layers are set on the left and right sides, the amount of light emitted from the two sides can be adjusted according to the amount of light shielding silicone layer wrapping around the outer periphery of the light-transmitting silicone layer, thereby meeting the diverse scene requirements of the light strip. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of a solid extrusion structure of a silicone co-extruded integrated light strip according to an embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional schematic diagram of another solid extrusion structure of a silicone co-extruded integrated light strip according to an embodiment of this utility model.

[0020] Figure 3 This is a cross-sectional schematic diagram of a hollow extrusion structure of a silicone co-extruded integrated light strip according to an embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional schematic diagram of another hollow extrusion structure of a silicone co-extruded integrated light strip according to an embodiment of this utility model.

[0022] In the picture,

[0023] 1. Strip substrate; 2. LED beads; 3. Transparent silicone layer; 4. Light-shielding silicone layer; 5. Gap. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4This illustration shows an embodiment of the present invention providing a silicone co-extruded integrated light strip. The light strip includes a strip substrate 1 and a plurality of LED beads 2 disposed on the strip substrate 1, and also includes a silicone body. The silicone body includes a light-transmitting silicone layer 3. The silicone co-extruded integrated light strip is a long, flexible light strip. The strip substrate 1 and the silicone body are co-extruded integrally formed. The silicone body surrounds the strip substrate 1 and the LED beads 2. The silicone body is configured to allow light to pass through at least one side of the flexible light strip. The light-transmitting silicone layer 3 is at least disposed above the LED beads 2 and / or below the strip substrate 1.

[0026] Specifically, the co-extruded integral molding structure is either a hollow extrusion structure or a solid extrusion structure. The hollow extrusion structure has a gap between the silicone body and the light-emitting surface of the flexible light strip. The gap is a continuous cavity structure, which allows light to scatter when passing through the silicone material, reducing light spots or shadows and achieving a softer, more uniform light output effect. It is suitable for interior decoration scenes that require high-quality ambient lighting. The solid extrusion structure has the silicone body completely encapsulating the strip substrate 1 and the LED beads 2, thus forming a seamless sealed structure between the silicone body and the strip substrate 1 and the LED beads 2. It is suitable for humid scenes that require moisture barrier. Moreover, the solid extrusion structure can also achieve uniform light scattering by adding light diffusers, vulcanizing agents and other substances to the silicone body for secondary optical design, eliminating graininess and light spot phenomena, and presenting a soft, glare-free effect.

[0027] In some specific embodiments, such as Figure 1 The LED strip shown is a solid extruded silicone co-extruded integrated light strip with a 5mm*5mm specification. A light-transmitting silicone layer 3 is provided above the LED beads 2, below the strip substrate 1, and on both sides of them. The light-transmitting silicone layer 3 tightly wraps around the strip substrate 1 and the LED beads 2. Since the light-transmitting silicone layer 3 is a silicone body with a light transmittance greater than 90%, this light strip can achieve 360° omnidirectional light emission. More specifically, as shown... Figure 2 The silicone co-extruded integrated light strip shown is another solid extrusion structure with a specification of 5mm*3mm. It is made by reducing the thickness of the light-transmitting silicone layer 3 above the LED beads 2 and below the strip substrate 1 to create a thinner light strip, thereby meeting users' higher pursuit of the visual effect of "seeing the light but not the lamp".

[0028] Specifically, the silicone body further includes a light-shielding silicone layer 4, and the light-shielding silicone layer 4 and / or a light-transmitting silicone layer 3 are disposed on the left and right sides of the strip substrate 1 and the LED beads 2.

[0029] More specifically, the light-transmitting silicone layer 3 and the light-shielding silicone layer 4 are co-extruded integral structures. The light-shielding silicone layer 4 wraps around part or the entire outer periphery of the side of the light-transmitting silicone layer 3. The top of the light-transmitting silicone layer 3 is higher than or horizontal to the top of the light-shielding silicone layer 4, and the bottom of the light-shielding silicone layer 4 is horizontal to the bottom of the light-transmitting silicone layer 3.

[0030] In some specific embodiments, such as Figure 3 The illustrated LED strip is a 4.5mm x 4.5mm hollow extrusion structure silicone co-extruded integrated LED strip. A light-transmitting silicone layer 3 is positioned above the LED beads 2. Light-transmitting silicone layers 3 and light-shielding silicone layers 4 are sequentially positioned on the left and right sides of the LED beads 2 from the inside out. A light-transmitting silicone layer 3 is positioned below the strip substrate 1. Gaps 5 exist between the LED beads 2 and the light-transmitting silicone layers 3 above and on the left and right sides. The tops of the light-transmitting silicone layers 3 on the left and right sides are horizontal to the top of the light-shielding silicone layers 4, and the bottoms of the light-shielding silicone layers 4 are horizontal to the bottom of the light-transmitting silicone layer 3 below the strip substrate 1. The light-shielding silicone layers 4 completely block the light from both sides of the LED strip. The light emitted by the LED beads 2 only shines upwards, creating a single light-emitting surface. This design is suitable for scenarios requiring highly concentrated light. More specifically, for example... Figure 4 The specification shown is a 6mm*6mm hollow extrusion structure silicone co-extruded integrated light strip. Figure 4 Is Figure 3 Based on this, the top of the light-transmitting silicone layer 3 on the left and right sides is higher than the top of the light-shielding silicone layer 4. As a result, the light-shielding silicone layer 4 cannot completely block the light from both sides of the light strip. The light emitted by the LED beads 2 not only shines upwards but also shines to the left and right sides, achieving three-sided light output. Moreover, the amount of light output from the sides can be adjusted by designing the coverage ratio of the light-shielding silicone layer 4, which is conducive to providing users with more flexible and varied lighting design solutions.

[0031] More specifically, the light-transmitting silicone layer 3 is a milky white, semi-transparent silicone body, and the light-shielding silicone layer 4 is a white or colorless, opaque silicone body.

[0032] Specifically, the light-transmitting silicone layer 3 is a silicone body with a light transmittance greater than 90%. More specifically, the light-transmitting silicone layer 3 has an inverted trapezoidal structure, and the light-shielding silicone layer 4 has an inverted trapezoidal groove with its opening facing upwards. The inclined outer side of the light-transmitting silicone layer 3 is in close contact with the inclined inner side of the inverted trapezoidal groove.

[0033] Specifically, the strip substrate 1 is a flexible FPC printed circuit board, and the LED beads 2 are disposed on the upper surface of the strip substrate 1 and are laid at equal intervals along the axial direction of the strip substrate.

[0034] Specifically, the minimum bending diameter of the flexible light strip is 30mm.

[0035] More specifically, the upper surface of the light-transmitting silicone layer 3 is planar, or at least a portion of its light-emitting surface is planar; the sides of the light-shielding silicone layer 4 are flat, making the entire silicone body rectangular or chamfered rectangular in cross-section; the light-transmitting silicone layer 3 includes an upper portion covering the LED beads 2 and a lower portion disposed on the bottom surface of the strip substrate 1, and the light-shielding silicone layer 4 surrounds the upper and lower portions of the light-transmitting silicone layer 3. The light-shielding silicone layer 4 is not disposed on the lower portion of the bottom surface of the strip substrate 1 because the light-transmitting silicone layer 3 has better thermal conductivity, which can accelerate the heat transfer from the strip substrate 1 to the mounting surface, while the light-shielding silicone layer 4 would have reduced thermal conductivity due to the addition of light-shielding fillers such as carbon black. The flexible light strip also includes wires for connecting to an external power source or to another flexible light strip, the wires extending from one or both ends of the strip substrate 1.

[0036] In summary, this silicone co-extruded integrated light strip adopts a co-extruded integrated molding structure. The silicone body surrounds the strip substrate 1 and LED beads 2 tightly, forming a seamless sealing structure that effectively prevents external moisture intrusion, achieving IP67 waterproof protection. This allows the light strip to maintain stable operation even when installed in environments such as underwater landscapes or bathrooms. Compared to traditional light strips, this light strip is coated with silicone, which has a lower density than PVC, making it lighter and easier to transport and use. Furthermore, compared to traditional light strips, this silicone co-extruded integrated light strip has better bending resistance and toughness, reducing the risk of breakage of the internal flexible FPC printed circuit board due to bending or compression during transportation or installation. Moreover, the strip substrate 1... At least one light-transmitting silicone layer 3 is provided below the light strip, making it flexible and essentially self-adhesive. It can be installed on curved surfaces such as arched ceilings, cylinders, or other irregular structures without the need for additional fixing brackets. In addition, this silicone co-extruded integrated light strip has a light-transmitting silicone layer 3 and / or a light-shielding silicone layer 4 on the left and right sides of the strip substrate 1 and LED beads 2. When only the light-transmitting silicone layer 3 is provided on the left and right sides, the light strip can achieve light emission from at least three sides, including the top and sides. When only the light-shielding silicone layer 4 is provided on the left and right sides, light emission from the top side is achieved. When both the light-transmitting silicone layer 3 and the light-shielding silicone layer 4 are provided on the left and right sides, the amount of light emitted from the two sides can be adjusted according to the amount of wrapping of the light-shielding silicone layer 4 around the outer periphery of the light-transmitting silicone layer 3, thereby meeting the diverse scene requirements of the light strip.

[0037] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A silicone co-extruded integrated LED strip, the LED strip comprising a strip-shaped substrate and a plurality of LED beads disposed on the strip-shaped substrate, characterized in that, It also includes a silicone body, which includes a light-transmitting silicone layer. The silicone co-extruded integrated light strip is a long, flexible light strip. The strip substrate and the silicone body are co-extruded integrally molded. The silicone body surrounds the strip substrate and the LED beads. The silicone body is configured to allow light to pass through at least one side of the flexible light strip. The light-transmitting silicone layer is provided at least above the LED beads and / or below the strip substrate.

2. The silicone co-extruded integrated light strip as described in claim 1, characterized in that, The co-extruded integral molding structure is a hollow extrusion structure or a solid extrusion structure. In the hollow extrusion structure, there is a gap between the silicone body and the light-emitting surface of the flexible LED strip, and the gap is a continuous cavity structure. In the solid extrusion structure, the silicone body completely encapsulates the strip substrate and the LED beads, thereby forming a seamless sealed structure between the silicone body and the strip substrate and the LED beads.

3. The silicone co-extruded integrated light strip as described in claim 1, characterized in that, The silicone body also includes a light-shielding silicone layer, and the light-shielding silicone layer and / or light-transmitting silicone layer are provided on the left and right sides of the strip substrate and the LED beads.

4. The silicone co-extruded integrated light strip as described in claim 3, characterized in that, The light-transmitting silicone layer and the light-shielding silicone layer are co-extruded integrally formed structures. The light-shielding silicone layer covers part or all of the outer periphery of the side of the light-transmitting silicone layer. The top of the light-transmitting silicone layer is higher than or horizontal to the top of the light-shielding silicone layer, and the bottom of the light-shielding silicone layer is horizontal to the bottom of the light-transmitting silicone layer.

5. The silicone co-extruded integrated light strip as described in claim 3, characterized in that, The light-transmitting silicone layer is a milky white, semi-transparent silicone body, and the light-shielding silicone layer is a white or colorless, opaque silicone body.

6. The silicone co-extruded integrated light strip as described in claim 1, characterized in that, The light-transmitting silicone layer is a silicone body with a light transmittance greater than 90%.

7. The silicone co-extruded integrated light strip as described in claim 3, characterized in that, The light-transmitting silicone layer has an inverted trapezoidal structure, and the light-shielding silicone layer has an inverted trapezoidal groove with the opening facing upward. The inclined outer side of the light-transmitting silicone layer is in close contact with the inclined inner side of the inverted trapezoidal groove.

8. The silicone co-extruded integrated light strip as described in claim 1, characterized in that, The strip substrate is a flexible FPC printed circuit board, and the LED beads are disposed on the upper surface of the strip substrate and are laid at equal intervals along the axial direction of the strip substrate.

9. The silicone co-extruded integrated light strip as described in claim 1, characterized in that, The minimum bending diameter of the flexible light strip is 30mm.

10. The silicone co-extruded integrated light strip as described in claim 3, characterized in that, The upper surface of the light-transmitting silicone layer has a planar structure or at least a partially planar light-emitting surface; the side surface of the light-shielding silicone layer is a flat surface, making the cross-section of the entire silicone body rectangular or chamfered rectangular; the light-transmitting silicone layer includes an upper portion covering the LED beads and a lower portion disposed on the bottom surface of the strip substrate, and the light-shielding silicone layer surrounds the upper and lower portions of the light-transmitting silicone layer; the flexible light strip also includes wires for connecting to an external power source or to another flexible light strip, and the wires extend from one or both ends of the strip substrate.

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