How is the safety of LED fluorescent tubes achieved?
Compare how an LED tube is done
To maintain long life and high brightness of LED tubes, the problems to be solved are four key technologies: power supply technology, LED light source, heat dissipation treatment, and safety. LED tubes have a wide range of applications in daily life, such as supermarkets, schools, office cities, subways, etc., as long as you can see a large number of public places, you can see a large number of fluorescent lamps! How to make the life and brightness of the LED to achieve the use The standard of satisfaction is a very meaningful topic!
1. Benwei Power
The primary requirement of the power supply is high efficiency and high efficiency products. Benwei power supply pf>0.95, efficiency: 93% heating is low, and stability is bound to be high. Usually there are two options of isolation and non-isolation in the power supply part. The isolation volume is too large and the efficiency is low. There will be many problems in use and installation, which is not as good as the market prospect of non-isolated products.
2. LED light source
In traditional SMD products, although the positive and negative electrodes can be connected through the gold wire of the chip, it also allows the heat generated by the chip to be connected to the silver pin through the gold wire. The conduction of heat and electricity is conducted by money, and the heat accumulation time is long. It will directly affect the life of LED fluorescent tubes, such as 3528, 2835 lamp beads. The LED light source adopts the patented structure of Lumins 3014 in Taiwan. The chip is placed on the pin, and the heat energy is directly discharged from the chip node through the silver pin. It is the same as the traditional in-line products and traditional SMD products in heat dissipation. There are qualitative differences. The node temperature of the chip will not accumulate, thus ensuring the good usability of the light source lamp beads, ensuring the long life of the light source lamp beads and low light attenuation, which is usually called thermoelectric separation. 3014 has a large light-emitting angle and no light spots. And the brightness of a single chip is high, up to 15lm.
3. Heat dissipation treatment
There are three ways of heat conduction, convection, conduction and radiation. In a closed environment, convection and conduction may be less likely to be achieved, and heat dissipation through radiation is the focus of LED fluorescent tubes. The introduction and application of infrared radiation heat dissipation to fluorescent tubes is an important means to improve the service life of the tubes. In consideration of heat dissipation, we separate the heat dissipation of the LED light source lamp beads and the heat dissipation of the power supply, and do not interfere with each other, so as to ensure the rationality of heat dissipation. The power supply efficiency is high. Only 7% of the electric energy of the Langte power supply is converted into heat. The temperature rise is low. The temperature of the tube is only 47° when tested under the condition of 30 degrees. The heat dissipation effect is leading in the industry. Over 50°, it will lead to faster light decay, shorten life span, and quickly become a "firefly"
4. Security
There are two types of safety. One is the PC flame-retardant plastic tube. Because infrared radiation can penetrate the PC tube, when we design the LED lamp, we can consider its safety more. Use all-plastic physical insulation, even in The use of non-isolated power supply can absolutely guarantee the safety of use. The second is to take good insulation measures. Langte uses UL wire, which can withstand high temperatures of 200°, which greatly increases safety and guarantees use and installation. Many peers use ordinary wires, which are prone to aging and short circuits, or even leakage.
