Waterproof lamp strip
The double-layer flexible membrane design solves the problems of insufficient waterproof performance and flexibility of LED light strips, achieves high waterproofness, high flexibility and light transmittance, and improves the convenience and durability of the light strips.
Patent Information
- Application Number
- CN202422883096.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing LED light strips lack waterproof performance and flexibility, and traditional packaging methods are costly and have poor flexibility, affecting ease of use.
It adopts a double-layer flexible membrane design, including a first membrane and a second membrane. The two are bonded together through a hot pressing process and can be made of TPU, silicone, ABS glue, PE glue or PU glue. A translucent surface is set to form a waterproof barrier.
It achieves high waterproof performance and high flexibility, ensures the light transmittance and ductility of the light strip, avoids colloid unevenness and aging problems, and extends service life.
Smart Images

Figure CN223360596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lighting equipment, in particular to a waterproof light strip. Background Art
[0002] LED light strips, also known as LED light bars, are lighting products that incorporate LEDs assembled on a strip of flexible printed circuit (FPC) or PCB. They are named for their resemblance to a ribbon. Conventional LED light strips on the market are typically packaged with a casing, casing sealant, plasticized colloid, or extruded colloid to ensure waterproofing. However, casing packaging offers limited waterproofing. While casing sealant or extruded colloid offer better waterproofing, these packaging methods result in oversized LED light strips and poor flexibility. Furthermore, these packaging methods are not only costly but also significantly reduce the strip's flexibility and make them inconvenient to use. Utility Model Content
[0003] The purpose of the present invention is to provide a waterproof light strip with the advantages of strong waterproof performance and high flexibility in view of the defects and shortcomings of the existing technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a waterproof light strip, comprising: a light strip body and a flexible film layer wrapped around the outer layer of the light strip body; the flexible film layer is provided with a light-transmitting surface on one side corresponding to the light emitting direction of the light strip body.
[0005] The utility model is further provided that the flexible membrane layer includes: a first membrane sheet arranged on the bottom surface of the light strip body and a second membrane sheet arranged on the side of the light emitting direction of the light strip body; the second membrane sheet is provided with the light-transmitting surface; the first membrane sheet and the second membrane sheet jointly enclose a space for placing the light strip body.
[0006] The present invention is further provided with a transparent structure in the second diaphragm.
[0007] The present invention is further provided that the material of the first diaphragm is any one of five kinds of glue: TPU, silicone, ABS glue, PE glue and PU glue.
[0008] The present invention is further provided that the material of the second diaphragm is any one of five kinds of glue: TPU, silicone, ABS glue, PE glue and PU glue.
[0009] The present invention further provides that the thickness of the second diaphragm is 0.1mm-0.3mm.
[0010] The present invention is further provided that the first diaphragm and the second diaphragm are bonded together by a hot pressing process.
[0011] The present invention is further provided with an adhesive layer provided between the first diaphragm and the second diaphragm.
[0012] The present invention is further provided that the light strip body comprises: a flexible circuit board and a light emitting component fixedly arranged on the flexible circuit board; the light emitting component is electrically connected to the flexible circuit board.
[0013] By adopting the above technical solution, the present invention achieves the following beneficial effects: In this invention, the outer layer of the light strip body is wrapped with a flexible film layer. Compared to commercial light strips that use sleeve sealing glue or colloid extrusion as the outer layer, this light strip has both excellent waterproof performance and high flexibility, further ensuring the flexibility and ductility of the waterproof light strip. In addition, the flexible film layer is provided with a light-transmitting surface on the side corresponding to the light output direction of the light strip body, so that the light output from the light strip body can pass through the flexible film layer on the side corresponding to the light output direction of the light strip body, ensuring the normal lighting operation of the waterproof light strip. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;
[0016] Figure 2 This is a schematic structural diagram of the utility model when it is in a single bar shape;
[0017] Figure 3 This is a schematic structural diagram of the utility model when it is in sheet form;
[0018] Figure 4 It is a schematic structural diagram of the utility model when it is in a multi-strip shape.
[0019] Explanation of reference numerals: 100, light strip body; 110, light-emitting element; 120, flexible circuit board; 200, flexible film layer; 210, first film; 220, second film; 221, light-transmitting surface. DETAILED DESCRIPTION
[0020] The present invention will be described in further detail below with reference to the accompanying drawings.
[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.
[0022] Example 1
[0023] This embodiment relates to a waterproof light strip, referring to Figure 1-Figure 2 , including: a light strip body 100 and a flexible film layer 200. The flexible film layer 200 is wrapped around the outer layer of the light strip body 100. The design of the flexible film layer 200 has both excellent waterproof performance and high flexibility. This feature prevents the waterproof light strip from entering water and dust and other debris when working in outdoor or humid environments, thereby preventing it from affecting its normal lighting work. The flexible film layer 200 has high flexibility, thereby ensuring the extensibility of the waterproof light strip and the possibility of folding and storing it, so that it can adapt to more complex wiring environments. A light-transmitting surface 221 is provided on the side of the flexible film layer 200 corresponding to the light-emitting direction of the light strip body 100 to ensure that the light emitted by the light strip body 100 can pass through the flexible film layer 200. Compared with the outer layer of the light strips on the market that use sleeve sealing and colloid extrusion to wrap the light strip body 100, the outer layer of this waterproof light strip adopts the design of flexible film layer 200, which is relatively thin and can be tightly attached to the light strip body 100. It has better light transmittance and superior flexibility.
[0024] Furthermore, the flexible membrane layer 200 includes: a first membrane 210 and a second membrane 220. The first membrane 210 is arranged on the bottom surface of the light strip body 100, that is, the first membrane 210 serves as a base membrane; the second membrane 220 is arranged on the side of the light strip body 100 in the light-emitting direction; the second membrane 220 is provided with a light-transmitting surface 221; that is, the second membrane 220 serves as a light-emitting membrane; the first membrane 210 and the second membrane 220 together enclose a space for the light strip body 100 to be placed. Compared with the sleeve, the double-layer membrane has better flexibility; compared with the sleeve sealing and colloid extrusion, the double-layer membrane design avoids the impact of problems such as uneven colloid or the presence of bubbles on light transmittance, and avoids the aging and shedding of the colloid affecting the structural strength and durability of the entire waterproof light strip. Specifically, the second membrane 220 is provided with a transparent structure to allow the light emitted by the light strip body 100 to pass through. In other embodiments, the second diaphragm 220 may also be provided with a frosted light-transmitting structure. The second diaphragm 220 only needs to be provided with a light-transmitting structure that allows the light emitted by the light strip body 100 to pass through. The light-transmitting structure is not limited to a transparent structure.
[0025] The material of the first diaphragm 210 is any one of the five kinds of TPU, silicone, ABS glue, PE glue and PU glue. The material of the second diaphragm 220 is any one of the five kinds of TPU, silicone, ABS glue, PE glue and PU glue. In this embodiment, the material of the first diaphragm 210 is TPU, and the material of the second diaphragm 220 is TPU. TPU is a thermoplastic polyurethane elastomer, which has high transparency, good elasticity, easy processing, excellent wear resistance, and good oil resistance and chemical resistance. The excellent wear resistance of the first diaphragm 210 and the second diaphragm 220 resists the wear and scratches of daily use, thereby extending the service life of the waterproof light strip. The high transparency of the second diaphragm 220 ensures that the light emitted by the light strip body 100 can pass through, avoiding affecting the light color of the light strip body 100 after passing through the second diaphragm 220.
[0026] In other embodiments, the first diaphragm 210 may also be made of silicone, ABS glue, PE glue, or PU glue. The second diaphragm 220 may also be made of silicone, ABS glue, PE glue, or PU glue.
[0027] Furthermore, the thickness of the second diaphragm 220 is 0.1mm-0.3mm. In the present embodiment, the thickness of the second diaphragm 220 is 0.1mm. The thickness of the second diaphragm 220 is relatively thin, ensuring good light transmission effect and flexibility. In other embodiments, the thickness of the second diaphragm 220 can also be: 0.125mm, 0.15mm, 0.175mm, 0.2mm, 0.225mm, 0.25mm, 0.275mm, 0.3mm. It is sufficient that the thickness of the second diaphragm 220 is selected in the range of 0.1mm-0.3mm, and no specific limitation is made here. Preferably, the thickness of the second diaphragm 220 is 0.1mm. In the present embodiment, the first diaphragm 210 serves as the base diaphragm, and there is no specific limitation on its thickness. It can be adaptively adjusted according to user needs and process.
[0028] In this embodiment, the first and second membranes 210 and 220 are bonded together using a hot pressing process. This process is conventional technology, and its basic principle is to apply pressure at a certain temperature to cause plastic deformation or adhesion of materials, and then maintain the desired shape or properties after cooling. In this embodiment, the first and second membranes 210 and 220 are bonded together using a hot pressing process, which is simple to process and easy to assemble, ensuring that the two membranes fit tightly together, forming a waterproof barrier that protects the light strip body 100.
[0029] In some embodiments, an adhesive layer is further provided between the first diaphragm 210 and the second diaphragm 220. Specifically, to further ensure good waterproof properties of the flexible membrane layer 200, an adhesive layer may be provided at the outer edges of the first diaphragm 210 and the second diaphragm 220 to further ensure tightness between the first diaphragm 210 and the second diaphragm 220. In other embodiments, the first diaphragm 210 and the second diaphragm 220 are fully coated with an adhesive layer on one side facing the light strip body 100. During hot pressing, on the one hand, it ensures that the edge positions of the first diaphragm 210 and the second diaphragm 220 relative to the outer edge of the light strip body 100 can be tightly bonded to prevent water ingress; on the other hand, the adhesive layer can also fit tightly with the light strip body 100 to form a waterproof barrier to protect the light strip body 100, further enhancing the waterproof performance.
[0030] In this embodiment, the light strip body 100 includes a flexible circuit board 120 and light-emitting elements 110 fixed to the flexible circuit board 120. The light-emitting elements 110 and the flexible circuit board 120 are electrically connected. Multiple light-emitting elements 110 are provided and evenly fixed to the flexible circuit board 120. The flexible circuit board 120 is highly flexible and can be bent and folded. In this embodiment, the light-emitting elements 110 are LED lamp beads. In some embodiments, the light-emitting elements 110 can also be other light-emitting devices.
[0031] In this embodiment, referring to Figure 2 , this waterproof light strip is a single strip.
[0032] Example 2
[0033] This embodiment is basically the same as the first embodiment, except that: in this embodiment, Figure 1 as well as Figure 4 The waterproof light strip is multi-strip, and the flexible membrane layer 200 is wrapped with multiple light strip bodies 100 arranged in parallel.
[0034] Example 3
[0035] This embodiment is basically the same as the first embodiment, except that: in this embodiment, Figure 1 as well as Figure 3 The waterproof light strip is in sheet shape, the flexible circuit board 120 is arranged in sheet shape, and the plurality of light-emitting elements 110 are distributed in a matrix on the same flexible circuit board 120 .
[0036] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims
1. A waterproof light strip, characterized in that: include: A light strip body (100) and a flexible film layer (200) wrapped around the outer layer of the light strip body (100); a light-transmitting surface (221) is provided on one side of the flexible film layer (200) corresponding to the light emitting direction of the light strip body (100).
2. The waterproof light strip according to claim 1, characterized in that: The flexible membrane layer (200) comprises: a first membrane (210) arranged on the bottom surface of the light strip body (100) and a second membrane (220) arranged on one side of the light strip body (100) in the light emitting direction; the second membrane (220) is provided with the light-transmitting surface (221); the first membrane (210) and the second membrane (220) jointly enclose a space for placing the light strip body (100).
3. The waterproof light strip according to claim 2, characterized in that: The second membrane (220) is provided with a transparent structure.
4. The waterproof light strip according to claim 2, characterized in that: The material of the first diaphragm (210) is any one of five kinds of materials: TPU, silicone, ABS glue, PE glue and PU glue.
5. The waterproof light strip according to claim 2, characterized in that: The material of the second diaphragm (220) is any one of the five types of materials: TPU, silicone, ABS glue, PE glue and PU glue.
6. The waterproof light strip according to claim 2, characterized in that: The thickness of the second membrane (220) is 0.1 mm to 0.3 mm.
7. The waterproof light strip according to any one of claims 2 to 6, characterized in that: The first membrane (210) and the second membrane (220) are bonded together through a hot pressing process.
8. The waterproof light strip according to claim 7, characterized in that: An adhesive layer is also provided between the first diaphragm (210) and the second diaphragm (220).
9. The waterproof light strip according to claim 1, characterized in that: The light strip body (100) includes The invention comprises: a flexible circuit board (120) and a light emitting element (110) fixedly arranged on the flexible circuit board (120); The light-emitting element (110) is electrically connected to the flexible circuit board (120).