Alternating-current input side luminescent LED (light-emitting diode) module used for double-sided luminescent lamp box

Abstract

The invention relates to the field of decorative lamps, in particular to an alternating-current input side luminescent LED (light-emitting diode) module used for a double-sided luminescent lamp box. The alternating-current input side luminescent LED module is characterized by comprising LED light sources, electronic components, a PCB (printed circuit board), secondary optical lenses, pouring sealant, a section bar housing, an end cap, a sealing cover and guide wires, wherein the LED light sources and the electronic components are adhered on the PCB printed circuit board; the bottoms of the secondary optical lenses are provided with the positioning posts; the corresponding position of the PCB is provided with positioning holes; long-strip-shaped saw-tooth grains are arranged inside light outlet surfaces of the secondary optical lenses; the pouring sealant is used for encapsulating the electronic components, the PCB, the bottoms of the secondary optical lenses, a bonding pad and the guide wires; and the section bar housing is mutually assembled with the end cap and the sealing cover. After adopting the technical scheme, a power supply converter can be cancelled, electric supply can be directly connected, and quantity of modules in single-serial connection is increased, mounting program is simplified, and maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of decorative lights, in particular to an AC input side light-emitting LED module used for a double-sided light-emitting light box. Background technique [0002] In the field of advertising light boxes or signage light boxes, traditional light boxes usually use direct sunlight inside fluorescent tubes or a combination of fluorescent tubes and light guide plates to achieve light-emitting functions. In recent years, with the rapid development of LED (light-emitting diode) technology, the advantages of LED energy saving and environmental protection have become increasingly prominent. Generally, LEDs have the advantage of saving energy by 50% compared to fluorescent tubes. As long as the design is reasonable, the use cost and maintenance cost of the logo light box using LED modules are much lower than that of the light box using fluorescent tubes. [0003] However, LED modules usually convert AC power into DC voltage (s...

AI Technical Summary

Problems solved by technology

Therefore, workers often have to carry power supplies of various powers to the construction site during operation, and use different types of power supplies according to different light boxes and the number of LEDs used in the box. Restrictions need to consider whether the size of the power supply can be installed reasonably, if not, it is necessary to use a small power supply (power becomes smaller), and increase the number of power supplies at the same time

This method brings great inconvenience to the installation

[0005] In addition, there is a problem of complicated installation when applying LED modules in double-sided light boxes

The conventional method is to install LED modules on both sides of a board to achieve double-sided lighting, which is expensive to install and inconvenient to maintain

[0006] An AC LED module disclosed in the Chinese Invention Patent Application Publication No. CN202432466U structurally integrates the AC conversion bridge stack and current limiting resistor into a lumped module, and then converts the output voltage through the lumped module as the following The input voltage of the LED module light string has the advantage of low cost, but it is not easy to cut at will. If the light string needs to be used separately, it needs to be reconnected to the lumped conversion module

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