IP68 COB flexible LED strips are a popular lighting solution that provides bright and energy-efficient illumination for a variety of applications. These LED strips are designed to be waterproof and dustproof, making them suitable for use in outdoor and indoor environments. This article will cover the manufacturing process and technology of IP68 COB flexible LED strips, including packaging the COB chips, fabricating PCB boards, welding lamp beads, and packaging lamp strips.
Packaging of COB chip
Before discussing the packaging of COB chips, it’s important to understand what COB chips are. COB stands for Chip on Board, and it refers to a type of LED packaging technology where multiple LED chips are mounted directly onto a PCB board. This type of packaging offers several advantages, including higher luminous efficacy, better thermal management, and reduced size.
The packaging of COB chips involves several steps. First, mount the LED chips onto a substrate material made of ceramic or metal. Then, coat the substrate material with a layer of phosphor to convert the blue light emitted by the LED chips into white light. Finally, cut the coated substrate into small pieces, each containing multiple LED chips.
The next step is to bond the COB chips onto a PCB board. This involves using a conductive adhesive to attach the COB chips to the board. Heat the PCB board to cure the adhesive and create a strong bond between the chips and the board. Once the COB chips bond to the PCB board, they are ready for the next stage of the manufacturing process.
Fabrication of PCB board
The PCB board is a critical component of the IP68 COB flexible LED strip. The board provides the electrical connections between the COB chips and the power source, as well as the circuitry for controlling the brightness and color of the LED strip. The fabrication of the PCB board involves several steps.
The first step is to design the circuitry for the PCB board. Engineers typically use specialized software that allows them to create a schematic of the circuitry.
Once the circuitry has been designed, the next step is to create the PCB board itself. This involves etching a thin layer of copper onto a substrate material, typically made of fiberglass or plastic.
The next step is to drill holes in the PCB board for the mounting of components. This is typically done using a CNC machine that can drill precise holes in the board. Therefore, once the holes have been drilled, the components are mounted onto the board using automated pick-and-place machines.
Welding of lamp bead
The lamp beads are the individual LED chips that are mounted onto the PCB board. The welding of lamp beads involves connecting the electrical leads of the lamp beads to the copper traces on the PCB board. This is typically done using a soldering iron or a reflow oven.
Heat the leads of the lamp beads with the soldering iron and melt a small amount of solder. Then, place the leads onto the copper traces on the PCB board. Heat them again with the soldering iron to melt the solder and create a strong bond between the leads and the traces.
The reflow oven is a more automated process that involves heating the entire PCB board in an oven. The oven heats the solder paste that has been applied to the copper traces and the leads of the lamp beads, causing the solder to melt and create a strong bond.
Packaging of lamp strip
The final stage of the manufacturing process is the packaging of the lamp strip. This involves encapsulating the PCB board and the lamp beads in a flexible and waterproof material that protects them from environmental damage.
The packaging process involves feeding the PCB board and the lamp beads into a machine that applies the packaging material to the top and bottom of the board. The material is then heated to cure it and create a strong bond between the packaging material and the board.
Once the packaging is complete, the LED strip is ready for use. The IP68 rating ensures that the LED strip is waterproof and dustproof, making it suitable for a wide range of applications.
Conclusion
To manufacture IP68 COB flexible LED strips including packaging COB chips, fabricating PCB boards, welding lamp beads, and packaging lamp strips. Each stage requires specialized equipment and expertise to ensure that the final product meets the required specifications. The result is a high-quality, energy-efficient lighting solution that offers bright and durable illumination for a variety of applications.