Flexible silica gel encapsulated waterproof COB lamp strip

Abstract

The utility model discloses a kind of flexible silica gel packaging waterproof COB lamp strip, including COB lamp bar, the top of COB lamp bar is packaged with silica gel strip, the bottom of silica gel strip is fixedly connected with low emissivity film, and the low emissivity film and COB lamp bar between fixedly installed are equidistantly arranged heat dissipation strip.The utility model, between silica gel strip and COB lamp bar, low emissivity film is arranged, reduces the heat transfer efficiency between both, avoids silica gel strip and quickly ages discoloration due to high temperature, prolongs the service life of silica gel strip, improves COB lamp strip use effect, and setting heat dissipation strip 4 improves the heat dissipation efficiency of the upper of COB lamp strip, further reduces the temperature of silica gel strip, guarantees the normal use of COB lamp strip.

Description

Technical Field

[0001] This utility model relates to the field of COB light strip technology, and more specifically, to a flexible silicone-encapsulated waterproof COB light strip. Background Technology

[0002] COB (Chip-on-Board) LED strips are an advanced LED packaging method. Instead of soldering individual LED beads onto a board, it directly and densely encapsulates tiny LED chips onto the circuit board. A layer of transparent silicone is then applied to the surface of the manufactured COB LED strip through processes such as potting and extrusion, providing waterproofing and protection.

[0003] However, silicone-encapsulated COB LED strips are prone to problems such as silicone yellowing and insufficient heat dissipation during actual use. The aging of silicone is severely affected by the temperature of the COB LED strip during operation, which accelerates the aging process and causes yellowing. This also reduces the lighting effect of the COB LED strip, and the inability to dissipate high temperatures can also easily damage the LED chips. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a flexible silicone-encapsulated waterproof COB light strip, so as to solve the problems of silicone yellowing and insufficient heat dissipation that easily occur in silicone-encapsulated COB light strips during actual use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution; A flexible silicone-encapsulated waterproof COB light strip includes a COB light strip, the top of which is encapsulated with a silicone strip, and the bottom of which is fixedly connected with a low-emissivity film. Heat dissipation strips arranged at equal intervals are fixedly installed between the low-emissivity film and the COB light strip.

[0006] As a further description of the above technical solution: Both ends of the heat dissipation strip pass through silicone strips and extend to the front and back of the COB light strip, respectively.

[0007] As a further description of the above technical solution: The low-emissivity film is a transparent Low-E film.

[0008] As a further description of the above technical solution: The heat sink is made of copper and has a frontal cross-sectional area of ​​1-2 mm². 2 .

[0009] As a further description of the above technical solution: The heat sink and the LED beads on the COB LED strip are spaced apart.

[0010] As a further description of the above technical solution: The cross-sectional shape of the silicone strip is arched.

[0011] Compared with existing technologies, the advantages of this utility model are: (1) In this solution, a low-emissivity film is set between the silicone strip and the COB light strip to reduce the heat transfer efficiency between the two, prevent the silicone strip from aging and discoloring rapidly due to high temperature, extend the service life of the silicone strip, and improve the performance of the COB light strip.

[0012] (2) In this solution, heat dissipation strip 4 is set to improve the heat dissipation efficiency of the COB light strip, further reduce the temperature of the silicone strip, and ensure the normal use of the COB light strip. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the COB light strip of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0014] Explanation of the labels in the diagram: 1. COB LED strip; 2. Silicone strip; 3. Low-emissivity film; 4. Heat sink. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please participate Figure 1-2 This utility model provides Embodiment 1: A flexible silicone-encapsulated waterproof COB light strip includes a COB light strip 1, with a silicone strip 2 encapsulated on the top of the COB light strip 1. A low-emissivity film 3 is fixedly connected to the bottom of the silicone strip 2. The low-emissivity film 3 is a transparent Low-E film. Heat dissipation strips 4 are fixedly installed at equal intervals between the low-emissivity film 3 and the COB light strip 1.

[0017] By setting a transparent low-emissivity film 3, the silicone strip 2 is separated from the LED bead portion of the COB LED strip 1, reducing the heat transfer efficiency of the COB LED strip 1 during operation to the silicone strip 2. This prevents the silicone strip 2 from rapidly increasing in temperature, as temperature is one of the main causes of silicone aging. According to the Arrhenius model, the aging rate of silicone approximately doubles for every 10°C increase in temperature. Therefore, controlling heat transfer can effectively prevent silicone from aging and discoloring. Furthermore, a heat dissipation strip 4 is set to improve the heat dissipation efficiency above the COB LED strip, further reducing the temperature of the silicone strip 2 and ensuring its service life and performance.

[0018] Low-E film allows visible light to pass through. Using Low-E film can reduce the impact on the light of COB light strips and has the effect of reflecting heat radiation, thereby reducing the heat from COB light strip 1 to silicone strip 2 and providing good heat insulation.

[0019] The cross-sectional shape of silicone strip 2 is arched; the arched shape of silicone strip 2 makes it easier for water droplets to slide off, reducing surface dust and water accumulation.

[0020] Please participate Figure 1-2 Based on Embodiment 1, this utility model also provides Embodiment 2: Both ends of the heat sink 4 penetrate the silicone strip 2 and extend to the front and back of the COB light strip 1, respectively; the heat sink 4 is a copper strip, and its front cross-sectional area is 1-2 mm². 2， The heat sink 4 is spaced apart from the LED beads on the COB LED strip 1. The heat sink 4 is distributed above the COB LED strip 1. Generally, the heat dissipation of the COB LED strip 1 is mainly achieved through the bottom of the substrate, while the heat dissipation above the substrate is poor due to the silicone encapsulation. The heat sink 4 can effectively improve the heat dissipation effect above the COB LED strip 1.

[0021] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A flexible silicone-encapsulated waterproof COB light strip, comprising a COB light strip (1), characterized in that: The top of the COB lamp strip (1) is encapsulated with a silicone strip (2), and the bottom of the silicone strip (2) is fixedly connected with a low-emissivity film (3). Heat dissipation strips (4) are fixedly installed at equal intervals between the low-emissivity film (3) and the COB lamp strip (1). 2.The flexible waterproof COB lamp strip of claim 1, wherein: Both ends of the heat dissipation strip (4) pass through the silicone strip (2) and extend to the front and back of the COB light strip (1) respectively. 3.The flexible waterproof COB lamp strip of claim 1, wherein: The low-emissivity film (3) is a transparent Low-E film. 4.The flexible waterproof COB lamp strip of claim 1, wherein: The heat dissipation strip (4) is a copper strip, the front view cross-sectional area of the heat dissipation strip (4) is 1-2mm 2 . 5.The flexible waterproof COB lamp strip of claim 1, wherein: The heat dissipation strip (4) and the LED beads on the COB light strip (1) are spaced apart. 6.The flexible waterproof COB lamp strip of claim 1, wherein: The cross-sectional shape of the silicone strip (2) is arched.

Images