LED lamp tube

Abstract

The invention discloses an LED lamp tube. The LED lamp tube comprises an LED lamp bead set and a drive device. The LED lamp beam set is combined and arranged in a 32-serial 4-parallel manner. The drive device comprises a rectification filtering unit and a constant current drive unit. An input end of the rectification filtering unit is connected with commercial power, an output end is connected with an input end of the constant current drive unit, and an output end of the constant current drive unit is connected with the LED lamp beam set so as to drive the LED lamp bead set to work. An output current of the constant current drive unit is 120mA, an output voltage is 96 V, and the model of the LED lamp beads is sMD2835. According to the invention, the number of the LED lamp beads is increased, and the current of each LED lamp bead is reduced, so that the power of the whole lamp bead set is lowered; in addition, compared with an existing 19W LED lamp tube, the LED lamp tube is more energy saving, the working temperature in the lamp tube is lowered, the working performance is more stable, and the service lifetime of the LED lamp tube is prolonged.

Description

Technical field [0001] The present invention relates to the field of lighting technology, in particular to an LED lamp tube. Background technique [0002] LED, or light-emitting diode, is a semiconductor solid light-emitting device. Because LED has the characteristics of energy saving, environmental protection, and long service life, it is widely used in the field of lighting and gradually replaced traditional fluorescent tubes. At present, LED tubes are used to replace fluorescent lamps. In the tube method, under the same installation height, LED tubes with a total lamp power of 19-20W can replace 40W fluorescent tubes. This replacement design can save about 50% of power, but this design is due to the number of lamp beads in the lamp panel Too little, most of the lamp bead current is used up, in addition, in long-term lighting, the internal temperature of the lamp continues to rise, which is prone to LED lamp light decay, which affects the performance and service life of the lam...

AI Technical Summary

Problems solved by technology

[0002] LED is a light-emitting diode, which is a semiconductor solid light-emitting device. Because LED has the characteristics of energy saving, environmental protection, and long service life, it is widely used in the field of lighting and gradually replaces traditional fluorescent tubes. At present, LED tubes are used to replace fluorescent lamps. In the tube mode, under the same installation height, the LED lamp tube with the whole lamp power of 19-20W can replace the 40W fluorescent lamp tube. This replacement design can save about 50% of electric energy. Too little, most of the current of the lamp bead is used up. In addition, during long-term lighting, the internal temperature of the lamp continues to rise, which is prone to LED lamp light decay, which affects the performance and service life of the lamp bead, which is not conducive to the lamp board. long-term use

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