LED (light emitting diode) energy-saving fluorescent lamp

Abstract

The invention discloses an LED (light emitting diode) energy-saving fluorescent lamp, which comprises a light tube base, a plastic shade case, a long stripped PCB (printed circuit board) and an LED luminous body, wherein the plastic shade case and long stripped PCB are arranged on a light tube, conducting posts for connecting a power supply and a conducting circuit layer of the PCB are arranged on at least one end cover of end covers at two ends of light energy, at least one patch type bridge rectifier is arranged on the front surface of at least one end of the PCB, positive and negative electrode conducting circuit layers of a direct current power supply are respectively arranged at the two sides of LEDs arranged on the PCB in the longitudinal direction, a plurality of LED lamp string groups are arranged between the conducting circuit layers of the positive electrode and the negative electrode, LEDs arranged among the lamp string groups are alternately ranged on the front surface of the PCB at equal intervals, a plurality of patch resistors are connected in series among the LED lamp string groups, and the front surface of at least one end of the PCB is provided with at least one fuse. The LED energy-saving fluorescent lamp has the advantages that the cost is low, the efficacy and the safety are high, and the maintenance is convenient.

Description

Technical field [0001] The invention relates to an illuminating device, in particular to an LED energy-saving fluorescent lamp. Background technique [0002] At present, the use of LED for lighting has become a trend. LED has the advantages of high efficiency, energy saving and low working voltage. There are shells, LEDs, and drive power. For this reason, an inventor has invented a patent application number: 200620064570.8 named "energy-saving lighting daylight tube". The AC / DC power supply module is provided with a rectification circuit, a step-down circuit, and a voltage stabilization circuit. The alternating current of the mains is input to the rectification circuit in the AC / DC power supply module, and the output power of the rectification circuit passes through the step-down circuit and the voltage stabilization circuit. After output to the LED light-emitting diode. The AC / DC power supply module mentioned therein is the LED drive power supply currently used. However...

AI Technical Summary

Problems solved by technology

However, due to the existing driving power supply, although the driving power supply has the advantage of adapting to a wide voltage range, the maintenance of the driving power supply is inconvenient and the maintenance cost is high, and once the driving power supply is damaged, the entire lamp tube will not work. If the LED in the lamp tube is damaged, it will cause open circuit and no load. If it takes a long time, it will also damage the driving power supply with normal functions. At present, many driving power supplies are difficult to meet the requirements of safety regulations and electromagnetic compatibility, and it is easy to cause damage to the surrounding electrical appliances during use. interference

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