Knowledge of led explosion proof light

- Nov 12, 2019-

It refers to the lamps and lanterns that take various specific measures to prevent ignition of explosive mixture around such as explosive gas environment, explosive dust environment and gas gas.One of the most important principles of LED explosion-proof lamps is to limit the temperature of shell surface, parts surface or electronic components surface in contact with explosive gas and dust, and to limit the temperature of electrical contact surface below its minimum ignition temperature or ignition temperature.As LED is a solid state cold light source, it has the advantages of high electro-optic conversion efficiency, low calorific value, small power consumption, safe working voltage, low voltage and long service life. Therefore, high-power white LED is an ideal electric light source for explosion-proof lamps, especially portable explosion-proof lamps.  


LED explosion-proof lamp includes a lamp shell, a lamp shade arranged at the front of the lamp shell, a luminous body and a battery arranged inside the lamp shell, and a switch arranged on the surface of the lamp shell.


The emitter is a high-power LED module with a wide voltage input driving circuit between the emitter and the battery.The wide voltage input driver circuit includes a constant-current chip, a constant-current chip and a battery constitute a power module. The LED module is connected to the constant-current chip, and the power module is sealed together with the LED module.Ultrasonic welding is used between the lamp shade and the lamp shell.  


It takes advantage of LED's low calorific value to realize essential safety level explosion-proof and long service life of LED light source.The battery maintains a constant brightness at full charge and at the end of discharge.Heat dissipation device is set on the lamp shell, which can realize the effective heat dissipation of LED module and ensure the stability of use. It is suitable for the lighting of coal mine, oil, railway, flood control and other industries.  


Suitable for explosive gas environment zone 1, zone 2, IIA, IIB, IIC dangerous places.