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| 【3535 lamp bead】 LED lamp bead application notice |
| Time:2022-10-08 00:00:00 | view： |
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[3535 lamp beads] LED lamp beads have unique advantages, but LED lamp beads are a vulnerable semiconductor product, so we must be careful when using LED products. Please pay great attention during use. (1) DC power supply should be used Some manufacturers should use the \"blocking volume\" method to power the LED products in order to reduce the cost of product costs, which will directly affect the life of LED lamp products. The use of special switching power supply (preferably the constant current source) product supply to LED lamp bead products will not affect the service life of the product, but the product cost is relatively high. (2) Anti -electrostatic measures must be taken LED lamp bead product should adopt certain anti -static measures during the processing production process, such as: workbench to be grounded, workers should wear anti -static clothing, anti -static loop, with anti -static loop, with anti -static loop, with anti -static loop. And with anti -static gloves, etc., those who have conditions can install anti -static ion fans, and also ensure that the humidity of the workshop is about 65%, so as to avoid the air from being too dry to generate static electricity. Essence In addition, different quality -grade LED anti -static capabilities are also different. LED lamp beads with high quality grade should be stronger. There may be a lot of friends who do not know the static electricity very well. I will introduce the knowledge of static electricity in detail here: The essence of static electricity is the surplus charge. Charges are all physical quantities in the essence of electrostatic phenomena. English is called ESD. Power level, electric field, current, etc. The amount of physical quantities caused by the existence of charge or the movement of the charge. Many electrostatic problems are caused by people without ESD consciousness. Even many people now suspect that ESD will cause damage to electronic products. This is because most ESD damage occurs below the human feeling, because the human body's perceived voltage of static discharge is about 3KV, and many electronic components will be damaged when they are hundreds of volts or even dozens of volts. Usually, when the electronic devices are damaged by ESD There is no obvious boundary, and the components are installed on the PCB before being tested. There are many problems, and the analysis is quite difficult. Especially for potential damage, it is difficult to measure the performance of its performance even with precision instruments, so both electronic engineers and designers have suspected ESD. In recent years, the experiment has confirmed that this potential damage will be Reliability decreases significantly.(3) The temperature of LED lamp beads Pay attention to the increase in temperature will make the internal resistance of LED lamp beads slightly increased. When the external environmental temperature increases, the internal resistance of the LED lamp beads will be reduced. It will cause LED working currents to rise. When the rated work current exceeds its rated work current, it will affect the service life of LED products. It will be severely \"burned out\" by LED lamp beads. Therefore The working current is not affected by the temperature of the outside world. The temperature of LED lamp beads is also the most important factor affecting the LED life. Please pay attention to it. (4) Sealing of LED lamp bead products No matter what LED lamp bead products are, as long as it is applied to outdoors, it is facing waterproof and moisture -proof sealing problems. If it is not handled, it will directly affect the service life of LED products. Now there are a small number of manufacturers with high product quality requirements to seal LED products with traditional epoxy resin \"pouring\" methods. This method is more troublesome to operate. It will also increase the weight of the product. (5) The current of LED lamp beads cannot exceed the IF current of LED lamp beads. (6) Pay attention to the folding angle of LED lamp beads LED lamp beads should not be too close to the collagen when bending or folding. Should be kept at a distance of more than 2mm from the colloid. The number of folds at the same place cannot be more than three times, the corner is bent 90 °, and then the original position is once. (7) Welding temperature Welding temperature is about 260 ° C, the time is controlled within 5s, and the welding point is above 2.5mm from the bottom of the colloid. |
