High-power energy-saving fluorescent lamp

Abstract

The invention discloses a high-power energy-saving fluorescent lamp. The upper ends of filaments are in wire connection with current outside lamp tubes through outwardly-protruding cylinders of conductors. The lower ends of the adjacent filaments are connected at equal intervals by temperature-controlled conductive sheets. Each temperature-controlled conductive sheet is a 'U'-shaped hollow metal sheet formed by bending the inner ring and the outer ring. The lamp tubes are connected in series by welding. An 'L'-shaped side tube is arranged at the outer edge of each single lamp tube, the bottom end of each 'L'-shaped side tube is arranged into a large-diameter tube, the bottoms of the 'L'-shaped side tubes are connected into a sunflower shape, and the outer surfaces of the 'L'-shaped side tubes are coated with fluorescent powder. The temperature-controlled conductive sheets ensure that electric energy flowing through the lamp tubes can be converted into optical energy when the lamp tubes are electrified and heated, thus enhancing the lighting effect. The 'L'-shaped side tubes are simple in structure design, the bottom diameter is increased, and the length of the glass tubes does not need to be increased. The whole structure of the lamp is compact, the light emitting surface area is increased, the power is increased, and enough light intensity is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of lamps, and in particular relates to a high-power energy-saving fluorescent lamp. Background technique [0002] Most energy-saving lamps use energy-saving fluorescent lamps, and the hot cathode filament is a crucial structural component. Before the lamp is ignited, it needs to be energized to heat the filament. When the lamp is working normally, the heating of the filament is harmful. Due to the thermal effect of the lamp current, the electronic powder on the filament already has a certain working temperature, and it is completely unnecessary to heat the filament, such as the principle of inductive ballast. At this time, continuing to energize to heat the filament has certain side effects in the lamp tube, affecting the luminous efficiency and working life of the lamp tube. If it is necessary to increase the power, it is usually to lengthen the length of the glass tube or increase the diameter of the gla...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide a high-power energy-saving fluorescent lamp, the temperature-control conductive sheet is a "U"-shaped hollow metal sheet, which solves the problems of overheating of the filament, increased loss, and shortened lamp life. It ensures that the electric energy of the lamp tube is converted into light energy while the filament is energized and heated, and the light effect is enhanced; the structure design of the "L"-shaped side tube is simple, the bottom tube diameter is thickened, and there is no need to lengthen the length of the glass tube, and the whole lamp has a compact structure , the luminous surface area increases and the power increases, thus ensuring sufficient light intensity